| fin |
A thin component on fish used for movement and stability |
鱼鳍 |
“Fish use their fins for propulsion in water.” |
| general remarks |
Initial comments or observations |
总的评论 |
“He began with some general remarks about the project.” |
| an overall picture |
A comprehensive view or summary |
总体情况 |
“The report gives an overall picture of the company’s health.” |
| propulsion |
The act of driving forward or moving |
推进 |
“Fins are essential for the propulsion of fish.” |
| stability |
The state of being steady and not changing |
稳定性 |
“Fins provide stability to fish in water.” |
| steering |
Controlling direction |
转向 |
“Fish use their fins for steering through water.” |
| brake |
To slow down or stop |
刹车 |
“Fish brake by using their fins in specific ways.” |
| coral reefs |
Underwater ecosystems characterized by reef-building corals |
珊瑚礁 |
“Requiem sharks avoid swimming into coral reefs due to space constraints.” |
| take sharp turns |
To change direction quickly |
急转弯 |
“To stop, some fish take sharp turns.” |
| roam |
To move around freely |
漫游 |
“Requiem sharks roam around the outside of coral reefs.” |
| Buoyancy |
The ability to float in water |
浮力 |
“Buoyancy counteracts the force of gravity on fish.” |
| impede |
To slow down the progress of |
阻碍 |
“Drag is a force that impedes movement through water.” |
| applies to |
Is relevant or suitable for |
适用于 |
“The concept of drag applies to objects moving through any fluid.” |
| fluid |
A substance that flows, such as water |
流体 |
“Fish maneuver through fluid environments effortlessly.” |
| force |
Strength or energy as an attribute of physical action |
力 |
“The force of buoyancy helps fish stay afloat.” |
| motion |
Movement |
运动 |
“Fins are crucial for the motion of fish in water.” |
| flipping over |
Turning upside down |
翻转 |
“Fins prevent fish from flipping over in water.” |
| crucial |
Extremely important |
关键的 |
“Fins are crucial for fish to maneuver through water.” |
| maneuver |
To move skillfully or carefully |
灵活移动 |
“Fish maneuver in water using their fins.” |
| median |
Situated in the middle |
中位的 |
“Median fins are located along the midline of the fish.” |
| dorsal |
Related to the back |
背鳍 |
“The dorsal fin is one of the median fins of fish.” |
| caudal |
Related to the tail |
尾鳍 |
“The caudal fin is the main propulsive agent for fish.” |
| tail |
The rear end of an animal’s body |
尾巴 |
“The tail fin, or caudal fin, propels the fish forward.” |
| paired |
Occurring in pairs |
成对的 |
“Paired fins help fish steer and maintain stability.” |
| propulsive agent |
Something that causes movement forward |
推进剂 |
“The caudal fin acts as a propulsive agent in fish.” |
| broad |
Wide |
宽的 |
“A broad tail fin allows for quick bursts of speed.” |
| burst |
A sudden increase in effort or speed |
爆发 |
“Fish use a burst of speed to escape predators.” |
| going after |
Pursuing |
追求 |
“Fish use bursts of speed when going after a meal.” |
| not at all |
Absolutely not |
根本不 |
“Not at all fish have caudal fins, like eels and seahorses.” |
| eels |
A type of fish that is long and thin |
鳗鱼 |
“Eels get along without a caudal fin.” |
| get along |
Manage or survive |
相处 |
“Eels get along just fine in the water without caudal fins.” |
| vertical |
Upright, perpendicular to the ground |
垂直的 |
“Seahorses swim in a vertical position.” |
| as if |
As though, similar to |
好像 |
“The seahorse uses its dorsal fin as if it were a caudal fin.” |
| rapidly |
Quickly |
迅速地 |
“Eels do not need to swim rapidly.” |
| moon-shaped |
Shaped like a crescent moon |
月牙形的 |
“The tuna’s moon-shaped tail reduces drag.” |
| case |
Instance or example |
情况 |
“In the case of the blackfish, its rounded caudal fin acts like a propeller.” |
| rounded |
Having a smooth, circular shape |
圆形的 |
“A rounded fin allows for sudden bursts of speed.” |
| sudden |
Happening without warning |
突然的 |
“Fish can accelerate in a sudden burst to catch prey.” |
| propeller |
A device that propels |
螺旋桨 |
“The blackfish’s fin works like a propeller during rapid movement.” |
| explosion |
A sudden and violent release of energy |
爆炸 |
“The blackfish can create an explosion-like sound with its fin.” |
| accelerate in an instant |
To speed up very quickly |
瞬间加速 |
“Some fish can accelerate in an instant to escape danger.” |