Immunostimulant
免疫刺激剂
🗣️ 情景例句
I believe stamp collecting is an interesting hobby.
我认为收集邮票是一种有趣的爱好。
The boy is shot.
那个男孩遭到了枪击。
Look at the sun! It's very bright.
瞧，阳光灿烂！