Plinol
1, 2- 二甲基3-异丙基环戊烷的羟基衍生物
🗣️ 情景例句
I only buy used books.
我只买旧书。
I ask him to tell me everything he did.
我要求他告诉我，他所做的每件事情。
Letters will cost a little more, but they will certainly travel faster.
这样会稍微多花点钱，但肯定是快得多了。