Ultrafines

超细粉末

🗣️ 情景例句

I'm glad I got to know you.
我很高兴能够认识你。
It's time for class.
上课时间到了。
but where had it come from?
但它是从哪儿来的呢？
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🔤 更多 U 开头的单词

ultra-audion circuit
unbred
under the hand of
unevolved
uniform random number
univalvular
unprotected field
unsupport hypothesis
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