Yac
abbr. yeast artificial chromosome 酵母人工染色體
??? 情景例句
Surprise parties don't always work out.
驚喜派對不是每次都成功的。
It matters not how long we live but how.
問題不是活得多么長，而是活得怎么樣。
What's your plan for the summer vacation?
你暑假打算干什么？