您要查找的是不是：
- Those machine is theirs. 那些机器是他们的。
- It is necessary that those machine is examine. 那些机器检查一下是必要的。
- Experience is their preparation for giving advice. 经验为她们进行咨询作了准备。
- It is necessary that those machine be examined. 那些机器检查一下是必要的。
- The machine is used to rip up the documents. 这台机器使用来搅碎旧布并为织出新布提供纤维的。
- I think this is their house but I'm not sure. 我想这是他们家，但不敢肯定。
- The machine is being experimentally used. 这些机器正在被实验地使用着。
- This washing machine is really a veteran. 这台洗衣机真是老古董了。
- This washing machine is the latest model. 这种洗衣机是最新型产品。
- This sewing machine is driven by an electric motor. 这台缝纫机是靠电动机启动的。
- Is their business on the square? 他们做生意规矩吗?
- The sewing machine is a real veteran. 那架缝纫机真是一件老古董了。
- It is their distinguishing characteristic. 这是他们与众不同的特徵。
- The machine is in running order. 这台机器运转正常。
- The machine is operated by an electronic pulse. 这台机器由电子脉冲信号操纵。
- The operation of this machine is simple. 这个机器的操作很简单。
- But one hundred and ninety is their final bid. I can not help it. 但190美元是他们的最终出价，我也没有办法。
- This machine is awkward to handle. 这台机器很难操作。
- The machine is not operating properly. 机器运转得不正常。
- This is their average yearly output. 这是他们每年的平均产量。
