Nbcs
[医][=newborn calf serum]新生牛血清
🗣️ 情景例句
Would you like to call home?
你给家里挂个电话怎么样？
Did you go to the picnic this morning?
你今早去野餐了吗？
Oh! And do you use American or British spelling?
噢！那你们是采用美国拼法还是英国拼法呢？