Quadrine
[化] α-氨基丁酸; α-氨基正丁酸
🗣️ 情景例句
You never know what you can do till you try.
除非尝试，否则你永远都不知道你有何价值。
The spacecraft is scheduled to arrive at Saturn next year.
太空船预定明年到达土星。
She herself read them to me by spelling into my hand what was written in the book.
她亲自通过在我手上拼写书中的内容，把课本对我读出来。