must be carefully checked
必须仔细检查
以上为机器翻译结果，长、整句建议使用 人工翻译 。
These figures must be checked carefully.
这些数字必须仔细核对。
youdao
Allen Hershkowitz with the Natural Resources Defense Council, a private environmental group, says air quality around landfill sites must be carefully checked when oil-contaminated waste is added to normal household trash.
VOA: standard.2010.08.05
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