JUMP INTO WATER 跳入水中, to jump into deep water with your head and arms going in first

〔头和胳膊先入水地〕跳水:

She dived into a pool.

她一头扎进水池里。

Diving off the cliffs is dangerous.

在悬崖跳水是很危险的。

SWIM UNDER WATER 潜水, to swim under water using special equipment to help you breathe

〔使用水肺等〕潜水:

The first time you dive on a coral reef is an experience you will never forget.

第一次在珊瑚礁潜水是毕生难忘的经历。

GO DEEPER / LOWER 下降/下潜, to travel down through the air or through water to a lower level

下降; 下潜:

The submarine began to dive.

潜水艇开始下潜。

The aircraft appeared to dive vertically towards the crowd.

这架飞机似乎在垂直向下朝人群俯冲。

MOVE QUICKLY 迅速移动, [always + adv / prep] to move or jump quickly in a particular direction or into a particular place

扑向，冲向:

Jackson dived after the ball.

杰克逊鱼跃接球。

We dived into a shop to avoid the rain.

我们冲进一家商店躲雨。

The soldiers were diving for cover (=to protect themselves behind something) .

士兵们飞快地跑着找掩护。

dive into your bag / pocket etc, to put your hand quickly in your bag, pocket etc in order to get something out

迅速将手伸入提包/衣袋等〔取出东西〕:

He dived into his pocket and produced a packet of cigarettes.

他猛地把手伸进衣袋里掏出一包烟。

NUMBERS 数, if numbers, prices etc dive, they suddenly become much lower than before

〔数字、价格等〕暴跌，突降:

The dollar dived against the yen in Tokyo today.

今天，东京美元对日元比价暴跌。

SUDDEN MOVEMENT 突然的动作, a sudden movement in a particular direction or into a particular place

冲，扑:

She made a dive for the bathroom.

她冲向洗手间。

SUDDEN FALL 突降，暴跌, a sudden fall in the amount, value, or success of something

〔数量、价格或运气的〕突降，暴跌:

The news put shares in a dive .

这条新闻使得股票大跌。

The team's fortunes have taken a dive this year.

今年这支球队时运不济。

MOVEMENT DOWNWARDS 往下方的移动, when something moves down through the air or water

俯冲:

Thankfully, the pilot managed to pull out of the dive and regain control.

幸亏驾驶员将飞机从俯冲的状态下拉起来，恢复了控制。

JUMP 跳, a jump into deep water with your head and arms going in first

〔头部和双手先入水的〕跳水

SWIM 游泳, the act of going under water to swim, using special equipment to help you breathe

〔使用水肺等的〕潜水

PLACE 地方, [informal] a bar, club etc that is cheap and dirty

下等（低级）酒吧（俱乐部）