您要查找的是不是：
- This is a motor hoist (winch) with low (high) wrapping speed. 这是低（高）速电动卷扬机（绞盘）。
- This is a vintage car made in 1917. 这是一辆造于一九一七年的古老而名贵的车。
- 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 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。
- 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 Chinese jeep, and that is an English car. 这是一辆中国吉普车，而那是一辆英国小汽车。
- This is a pay and display car park. 此停车场自动交费并张贴票据。
- 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。
- You can't be leaving me this is a bad dream! 你千万不可离开我--这太可怕了！
- This is a standard provision in car insurance. 这是一个标准的规定，汽车保险。
