Bets
abbr. 北京英语水平考试（Beijing English Testing System）
🗣️ 情景例句
What is this charge here?
这是什么费用？
What shall I send him for his birthday?
我要送他什么东西作为生日礼物？
The second factor is more interesting and more fundamental.
第二点更有意思，也更重要。