It is useful for
它对。。。。。是有用的
双语对照
例句:
1.
"Contemporary japan" teems with dates and data; it is useful for those in search ofunderstanding but is not for the casual reader who wants a good yarn.
《当代日本》里时间准确数据丰富，它对那些寻求真相的读者很有帮助，但它并不是写给那些想要找一些奇闻轶事消遣的读者。
2.
Since the data is available earlier than conventional surveys of confidence, it is useful forspotting economic turning-points.
因为这些数据要早于常规的信心调查，所以可以用其定位经济拐点。
