Stf
[医][=serum thymus factor]血清胸腺因子
🗣️ 情景例句
a group of caring Riverdale citizens gathered
一群热心公益的Riverdale居民聚集在一起
Many people were against the new freeway.
许多人反对新的高速公路。
The mother sat the child at a little table.
母亲安排孩子坐到小桌旁。