🧩 词语组成解析
serious
['sɪrɪəs]
adj. 严肃的，严重的;认真的，庄重的;重要的;危险的;
🗣️ 情景例句
Sure, but never before have we had payment in RMB.
当然可以，不过我们从来没有用过人民币付款。
On a crowded train, one comes in contact with many people.
在拥挤的火车里面，会和许多人接触。
Do you want the large size or the small size?
您要大号的还是小号的？