Glycylglycine
双甘氨肽
🗣️ 情景例句
But some things are personal or private, and questions about them are not polite.
但是有些事是私人的，问这些方面的问题是不礼貌的。
Money is a good servant but a bad master.
要做金钱的主人，莫作金钱的奴隶。
Instead of catching fish,they catch old boots and rubbish.
他们往往鱼钓不到，却钓上来些旧靴子和垃圾。