Sewage pump
[化] 污水泵
?? 詞語組成解析
sewage
['sju(:)id?]
n. （下水道里的）污物;下水道;污水;
pump
[p?mp]
n. 抽水機;打氣筒;泵;輕軟舞鞋;
v. 用泵輸送 ;涌出;急速搖晃;盤問;
??? 情景例句
Now would be a good time, I think, for some introductions.
我想，下面是作些介紹的時候了。
What time does the train for Boston leaves?
去波士頓的火車幾點開？
Last Tuesday he received a letter from the local police.
上星期二他收到當地警察局的一封信，