In a long drop, they reach speeds of 60 miles an hour and more.
在一个长长的跌落过程中，它们可以达到每小时60英里甚至更快的速度。
In a long drop, they reach speeds of 60 miles an hour and more.
在一个长长的跌落过程中，它们可以达到每小时60里甚至更快的速度。
And after a long time spent getting nowhere, lots of children drop out early.
耗费时间无所收获，许多孩子便过早辍学了。
I do not know how long before, a small drop of water suddenly cried out: Mom, I want my mother, I want to go home.
不知过了多久，小小的水滴突然哭着喊：妈妈，我要妈妈，我要回家。
Protect the source of water, save every drop of water, never have a long shower.
监护水源，节约用水，拧紧水龙头，不要长时间淋浴。
Protect the source of water, save every drop of water, never have a long shower.
监护水源，节约用水，拧紧水龙头，不要长时间淋浴。
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