1.Learning without practice is useless
2.In winter，Beijing is cold than Shanghai.（PS：莪觉得在cold前面加much或者more更好。）
3.It's time to have lunch.
1.It is useless to learn without practising.
2.In winter,it is colder in Beijing than in Shanghai.
3.It is time for lunch.
只是借鉴 错了别找我
1 it's useless learning without practicing.
2 the weather is colder in beijing than that in shanghai in winter.
3 it's time for lunch.
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