Massenfilter
[机] 四极质谱仪
🗣️ 情景例句
How are you at mixing cocktails?
你喝混合鸡尾酒方面功夫如何？
I'm afraid it was a bother for you to do this.
我害怕做这会给你带来麻烦。
He opened the book and found a phrase.He read the phrase slowly.
他翻开书找到了一条短语。他缓慢地读着短语。