Please let us know if you cannot attend the meeting.

你若不能参加会议，请通知我们。

《牛津词典》

If you cannot go yourself, try to find someone to substitute you.

如果你不能亲自去，试着找人代替你。

youdao

None of this is likely to be on hand if you cannot even afford to mend the dismally few highways you have.

如果你甚至不能承担惨淡的几条高速公路的维修，那么这些都不太可能发生。

youdao

If you cannot access our Web site, send the information to VOA Special English two-zero-two-three-seven USA.

VOA: special.2009.10.16

If you cannot make the office hours, again, contact the recitation instructor to make other arrangements.

再次说，如果你们在办公时间不方便，联系背诵课的老师,再安排安排。

麻省理工公开课 - 固态化学导论课程节选

And you just think that's just gone, if that sea decide to take that house, it's gone, you cannot do it.

这时你会想说，这房子肯定会被毁掉的，如果大海要毁掉它，它就会毁掉，做什么都没有用的。

普林斯顿公开课 - 人性课程节选

If you cannot integrate across systems, you cannot call yourself a truly integrated cloud.

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If you cannot figure out why they are wrong, then you need to change your opinions.

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If you cannot describe your idea in 140 characters or less, try again until you can.

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