Undercourse

底层, 垫层, 在花砖或瓷砖之下的底层

🗣️ 情景例句

If negotiaton fails, then what?
万一谈判破裂，怎么办？
Guess!
猜猜看！
Let's think carefully, I replied.
“让我们仔细想一想，”我答道。
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🔤 更多 U 开头的单词

ultraphosphate
unattended ,ʌnə'tɛndɪd
uncovered acceptance
undermaintained
unhomogeneous
unmourned
unspilled
until proved otherwise
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