Ept
[化] 三元乙丙橡胶; 乙丙三元橡胶
🗣️ 情景例句
That's wonderful, Harry.
那太棒了， Harry。
How long has it been since you've heard from your uncle?
自从你听到叔叔的消息有多长时间了？
Mars has an extraordinary fascination for would-be voyagers.
火星对未来的星际旅客来说有着特殊的魅力。