掉进的英文：
fallen in ;fell in

参考例句：

He fell with a flop into the water.
他扑通一声掉进水里。

Take care, you'll fall down the hatch.
小心，不要掉进舱口。

Swerved off into a ditch.
转弯掉进沟里了

A mouse in a Bookcase/chewing up the pages
老鼠掉进书箱里

Peter fell in the river and caught a cold.
彼得掉进河里得了感冒。

The mammoth fell into an ice crevasse.
猛犸掉进冰河裂缝里了。

One craft had just missed going into the sea.
一架飞机差点儿掉进海里。

The ball rebounded from/off the wall into the pond.
球从墙上弹回来掉进池里.

I've got a speck in my eye.
我眼睛里掉进一点灰尘。

I've got a speck in my left eye.
我左眼里掉进一颗灰尘。

fallen是什么意思：
adj.
v. fall的过去分词

As rain has fallen, the air is cooler.
由于下了雨，空气比较凉爽。

Falling or fallen into ruin;dilapidated
倒塌的；残破的；摇摇欲坠的

The fallen trees obstruct the road.
倒下的树将路堵住了。

Interest in the game has fallen off.
人们对这项运动的兴趣已经降低。

Lucifer, the fallen angel.
堕落天使路西法。

fell是什么意思：
v. 砍倒；打倒
n. 兽皮；一季所伐的木材；山岗；丘陵地区；沼泽地
adj. 凶猛的；邪恶性的；残暴的

The bundle fell with a thud.
扑腾一声，包掉下来了。

An oak is not felled at one stroke
万事不能一蹴而就

The tree cracked loudly and fell.
这树发出巨大的爆裂声，倒在了地上。

He fell down with a bump.
他噗通一声倒了下去。

Then the long collaboration fell apart.
长期的合作就这样破裂。