The trick is that while total can be useful, it's not always useful.
问题在于总数是有用的，但却并非总是如此。
This sentence is more than useful English, it is an important and useful social skill!
这句话不仅是有用的英语，而且也是非常重要和有用的社交技巧！
The beautiful is as useful as the useful.
美和适用是一样有用的。
Most useful to a man is fresh, the most useful to a woman's company.
对男人最有用的是新鲜，对女人最有用的是陪伴。
It is a very useful sentence pattern, one of the most useful sentence pattern.
这个句型很有用，它是最有用的句型之一。
It is a very useful sentence pattern, one of the most useful sentence pattern.
这个句型很有用，它是最有用的句型之一。
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