我今天下午要和一个重要的客户见面。

Wǒ jīntiān xiàwǔ yào hé yí gè zhòngyào de kèhù jiànmiàn.

This afternoon I will meet with an important client.

今天我们有一个重要的客户会议。

jīntiān wǒmen yǒu yīgè zhòngyào de kèhù huìyì.

Today, we have an important client meeting.

我们要努力保持良好的客户关系。

wǒmen yào nǔlì bǎochí liánghǎo de kèhù guānxì.

We need to work hard to maintain good customer relations.