He was a stickler for the correct usage of English.

他是一个坚持英语的正确使用的人。

《柯林斯英汉双解大词典》

Here is some example pseudo-code for calling a transaction timer that shows correct usage.

下面是一个调用事务定时器的范例伪代码，以显示正确的用法。

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They appear more excited when we talk about university life in the United States than when we discuss the correct usage of the present perfect tense.

与讨论如何正确使用现在完成时相比，当我们谈起美国大学的生活时，他们显得更为兴奋。

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One employee complained that his boss ordered him to make a memo read, "for John and I, " rather than the correct usage, "for John and me, " Ms. O'Conner says.

WSJ: Grammar, a Victim in the Office

"The reason for the change is all about extending the bee's commitment to its purpose, which long has been not only to help students improve their spelling, but also to increase the vocabulary, learn concepts and develop correct English usage, " she said.

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Lastly, group plants together by water usage to ensure they get the correct amount of water.

CNN: X-rated yards save the environment