Immune system
免疫系统
🧩 词语组成解析
🗣️ 情景例句
The Post Office aims to improve its quality of service.
邮局锐意改善服务质量。
My brother took lessons on the trumpet for nearly ten years.
我的兄弟有将近10年的时间听小号的课了。
'Everyone's losing money these days,' he said.
“现在大家都在丢钱，”他说。