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- I am well aware that this is a tough job. 我深知这是一件棘手的工作。
- This is a problem that takes precedence over the others. 这个问题比其他的更为重要。
- This is a highly efficient new heating system. 这是个高效的新取暖系统。
- This is a sort of indeterminate color. 这是一种说不清的颜色。
- This is a problem that can't easily be laughed off. 这可不是一个可以等闲视之的问题。
- This is a serious problem of which I am well aware. 这是个很大的问题，我是意识到这个问题的。
- This is a coat of her own making. 这是她亲手做的外衣。
- This is a frivolous way of attacking the problem. 这是一种轻率敷衍的处理问题的方式。
- This is a good place for a picnic. 这是一个野餐的好地方。
- This is a question that they have often debated. 这是个他们常讨论的问题。
- This is a task well within your ability. 这完全是你力所能及的工作。
- This is a very popular name for a girl. 这是一个非常普通的女孩名字。
- I certify that this is a true copy. 我证明这是真副本。
- This is a book for young and old (alike). 这本书老少咸宜。
- This is a problem that haunts all of us. 这是一个使我们大家都担忧不已的问题。
- This is a combinatorial problem in canonical form. 这是组合论中的典型问题。
- This is a kind of lavender-water. 这是一种熏衣草香水。
- This is a kind of metallic paint. 这是一种有金属光泽的涂料。
- This is a large passenger airliner. 这是一架大型客机。
- This is a plan for the fortification of the city. 这是一个加强城市防御的计划。
