Area drainage
[机] 干壕排水
🧩 词语组成解析
area
['ɛrɪə]
n. 地区;区域，范围;面积，平地;领域;
🗣️ 情景例句
The security guard asked the stranger for some I.D.
保安要求陌生人出示身份证。
If he doesn't, will you buy one?
如果他不，你会买一个吗？
In man's early days, competition with other creatures must have been critical.
在人类早期，人类与其他生物的竞争一定是必不可少的。