be very useful at meaning in English
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Examples
- His wife is very useful at cooking .
他的妻子很会做菜。 - His wife is very useful at cooking
他的妻子擅长烹调。 - My wife is very useful at cooking
我的爱人很会做饭。 - If that were what digital signatures were like , then they wouldn t be very useful at all
如果数位签章就是像这样的，那么它们根本就没什么用。 - Which are very useful at first sight and save a lot of duplicated code , but make programs incomprehensible over time
，初看之下，它非常有用，可以节省大量重复的代码，但它会使程序变得越来越难以理解。