Ethines
[化] 炔烃
🗣️ 情景例句
What number are you trying to dial?
你要的电话是什么号码？
Mother begins baking cookies two weeks before Christmas.
自圣诞节的两周以前，母亲就开始做小甜饼了。
True and False have opposite meanings.
真与假含义完全相反。