This shop provides free car washing service.

这家店提供免费洗车服务。

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Car washing is permitted on the allocated day.

允许在上述指定日子中洗车。

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Although the site is also a car washing expenses, but from the above point of view, in fact, is still very necessary.

工地洗车机尽管也是一笔开支，可是从以上的状况来看，其实仍是很有必要的。

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Gift certificate for a day of yard work, house cleaning, window washing, or car washing.

FORBES: Holiday Shopping Savings Tips

Common exemptions include where a hosepipe is used to clean cars, windows or outdoor surfaces - this covers car washing businesses and window cleaners.

BBC: Q&A: Hosepipe bans

Harvard should be more competitive than car washing, right?

FORBES: Getting A Job Washing Cars Is Harder Than Getting Into Harvard