Haplotype
单模标本
🗣️ 情景例句
If I were you I'd change the beginning.
如果我是你的话，我会把开头改一改。
The cow that's first up gets the first of the dew.
早起母牛先得露。
Don't you usually come to school by bike?
你不是常骑自行车到学校吗？