Stf
[医][=serum thymus factor]血清胸腺因子
🗣️ 情景例句
In my country, we get a couple of days off for Easter.
在我国，我们在复活节的时候有好几天的假期。
A fool always finds a greater fool than himself.
愚人总以为旁人比自己更傻。
Last week, my four-year-old daughter, Sally, was invited to a children's party.
上周，我4岁的女儿萨莉被邀请去参加一个儿童聚会。