Underdrainage

n. 暗渠排水, 地下排水

🗣️ 情景例句

Mmm-hmm.
嗯。
What time did you use to get up last year?
你去年时常什么时间起床？
Which do you think is more interesting?
你认为哪个节目更有趣呢？
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🔤 更多 U 开头的单词

ultra-magnifier
unazotized
underexplored
unfavorable balance of trade
unidirectional solidification
United States Air Force
unprovoked assault
upper yield point
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