您要查找的是不是：
- This is a free country I can say what I like. 这是个自由的国家--我爱说什麽就可以说什麽。
- This is a free selective course. 这是一门自选课。
- Cost effective: This is a free service provided by DHL-SINOTRANS. 节约成本:此项服务是中外运敦豪提供的免费项目。
- This is a free tool and you should use it at your own risk. 这是一个免费工具,应使用需要您自担风险。
- 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 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 way out for high school graduates. 这是高中毕业生的一条出路。
- This is a coat of her own making. 这是她亲手做的外衣。
- 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。
- In a free country there will always be conflicting ideas, and this is a source of strength. 自由的国家中将一直存在矛盾的思想，这是力量的源泉。（省略不定冠词）
- This is a task well within your ability. 这完全是你力所能及的工作。
- To upgrade your version of Internet Explorer visit, windows/ie_intl/cn/. This is a free download. 访问该网页，在该网页的中央找到"现在下载"按钮，单击它。
- This is a very popular name for a girl. 这是一个非常普通的女孩名字。
- This is a free service, you can register an account for free, and set up your RSS feed, all done. 这是一个免费服务，可以免费注册一个账户，设定资料后就可以了。
- 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 humor with relevance to school life. 这是一个与学校生活有关的幽默。
- This is a kind of lavender-water. 这是一种熏衣草香水。
