be very useful at

基本解释

It can be very useful to look at the total elapsed time and compare that with the user and system CPU times.
看看总耗时，并将其与用户和系统 CPU 时间相比较，这样做是十分有用的。
Monitoring of groove erosion could not only help to know the soil erosion rules, but be very useful for the production of sediment at small watershed and regional scales.
沟槽是径流与输沙通道和侵蚀主体，沟槽侵蚀监测对揭示水土流失规律和进行流域产沙模拟有重要意义。
Still, Samani notes that CRP can still be very useful for identifying people at high risk for heart disease, particularly those without other risk factors such as high cholesterol.
并且，Samai提到CRP对于人们证实心脏病的高危因素仍然十分有效，特别是高胆固醇患者无其它危险因素时。
blog.sina.com.cn

But today it has announced FDA approval for Tygacil, a new antibiotic that may be very useful at treating infections where there are multiple types of resistant bacteria, or where the pathogen can't be identified.
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If the shares are to be useful, at the very least there must be pricing coherence.
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