Immunocompetence
n[生].免疫活性
🗣️ 情景例句
And I'll call Mr. Riley at the bank
我打电话到银行给Riley先生
Light troubles speak; great troubles are silent.
小困难，大声叫嚷；大困难，闷生不响。
What happened before printing was invented?
印刷术发明以前是怎么一回事？