Backing pump
[化] 前級泵
?? 詞語組成解析
backing
[['b?ki?]]
n. 后退, 襯背, 后援, 支持者\\n[化] 襯墊
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
Shows marked dislike for schoolwork.
明顯討厭功課。
The man mines coal where day seems like night.
這個人在即便是白天也猶如晚上的地方開采煤炭。
I looked at my watch.It was true.
我看了一下我的手表，果真如此。