D-amylbromide
[化] 光活性溴戊烷
🗣️ 情景例句
I hear the exams will be very tough.
我听说考试挺难的。
Can you guess what I was doing this morning?
你能猜测我今早正在做什么吗？
What do you want to do next fall?
今年秋季你打算干什么？