Defining vocabulary
（词典的）释义词汇
🧩 词语组成解析
[计] 定义的
🗣️ 情景例句
We started by making safety equipment for many sports.
我们是以做运动产品的安全器材起家的。
Opportunity seldom knocks twice.
机不可失，失不再来。
I can't say for certain off-hand.
我还不能马上说定。