🧩 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
No. That's about all.
没有。大概就是这些。
He went to the post office to mail a letter.
他去了邮局寄信。
It is hard for us to realize nowadays how difficult it was for the pioneers.
我们今天很难想像昔日的登山先驱们是多么艰苦。