A:Did you hear the news? Tom has been taking Mandarin classes every evening for the past six months. 你听说了吗？Tom过去半年每晚都在上中文课。

B:No wonder his Chinese has gotten so good! I honestly thought he was just a natural. 难怪他中文进步这么大！我还以为他就是有语言天赋呢。

A:I'm thinking about applying for that manager position, but I've only been here two years. Maybe it's too soon. 我想申请那个经理职位，但我在这里才两年，可能还太早。

B:It's worth a shot. The worst they can say is no, and at least they'll know you're interested. 值得一试。最坏也就是被拒，至少让他们知道你有想法。

A:I have a dentist appointment at 3 PM and I won't be able to make the client call. 我3点要看牙医，没法接客户电话了。

B:No worries, I can cover for you. I'll take the call and send you the notes afterward. 没问题，我帮你顶。电话我来接，事后把纪要发给你。