Tripeptide
n. [化]三肽
??? 情景例句
Anything interesting happening?
有什么有趣的事情發(fā)生嗎？
Ellen liked to smell her mother's cooking, when she came home.
艾倫回到家來，喜歡聞一聞母親做的菜。
These days, advertisers not only offer free samples, but free cars, free houses, and free trips round the world as well.
目前，做廣告的人不僅提供免費樣品，而且還提供免費汽車，免費住房，免費周游世界。