At some 1,000 miles, the Mackenzie is the longest river in Canada.

麦肯齐河是加拿大最长的河流，全长约1000英里。

youdao

At some 2,300 miles in length, the Mississippi is the longest river in the United States.

密西西比河全长约2300英里，是美国最长的河流。

youdao

It will take an hour at the longest.

这事最多花一小时。

《牛津词典》

Normally, it takes the human process from six to nine months at the longest, we hope.

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Not to mention, this has all occurred at a time when unemployment is at its longest streak above 8.0% since the Great Depression.

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Some meals might go over to 45 minutes (at the longest).

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