Non-essential element
[化] 非必需元素
🧩 词语组成解析
non
[[nɔn]]
adv. 非, 不
element
['ɛləmənt]
n. [化]元素;要素;原理;[电]电阻丝;
🗣️ 情景例句
Don't you have to work?
你明天不用上班吗？
Beware of him who regards not his reputation.
要谨防不重自己名誉的人。
Oh, yes, Mr. Chou. We've been looking forward to this.
啊，周先生，我们一直在等着您来。