The water in the upper pot drops into the second one through a small hole and, in turn, drops into the third and finally into the bottom.

水通过一个小洞从第一个罐子落到第二个罐子里，然后滴入第三个，最后进入底部的那个。

youdao

The elections are staggered so that about one-third of the "upper" chamber faces a challenge in any given election cycle.

CNN: The insider's guide to the U.S. Congress

A340 in active service, one-third of which chiefly the upper fuselage and wings has been covered with a special, ribbed version of the film.

ECONOMIST: It’s a wrap | The