Undervulcanization
欠硫化
🗣️ 情景例句
You said you wanted to be a doctor like your father.
你说过你希望像爸爸一样成为一名医生。
I'm afraid I can't get away from the meeting.
我恐怕难以从会议中抽身。
Our project must proceed at a reasonably quick tempo. Surely one month is ample time, isn't it?
这个计划必须尽速进行。一个月的时间应该够了吧？