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- The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
- I advise waiting till the proper time. 我建议等到适当的时候。
- I do not think it's proper for you to behave so. 我认为您这样的举止不合体统。
- It's not proper for you to catch him up very short. 你突然打断他的话是不恰当的。
- She's not at all a proper person for you to know. 她可不是正派人，你不应该结识她。
- It's easier to cycle with the wind behind you. 顺风骑车省力。
- She hadn't had a proper holiday for years. 多年来她都没有过真正的假期。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- The company does not take proper fire precaution. 公司未采取正当的防火措施。
- Water is not a proper substitute for wine. 水不是酒的适当代用品。
- The seasons of the year make a cycle. 一年四季构成一个循环。
- The pages aren't in proper order. 这些页数次序不对。
- The business cycle experienced a sudden down. 商业周期经历了突然的萧条。
- Recycling is the only proper way. 循环再生是惟一的好办法。
- This is the cycle of economic booms and slumps. 这是经济繁荣和经济萧条的周期变化。
- Cycle across America? Sounds a bit dodgy to me. 骑自行车横越美国? 听起来有些冒险。
- The pedals of a cycle are attached to a crank. 自行车的踏板与曲柄相连。
- It's hard to get at the spark plug without a proper wrench. 没有一把合适的扳钳，要抓住那个火花塞是困难的。
- The pedals of a cycle are attached to the crank. 自行车的踏板与曲柄相连。
- I made a proper balls-up of that exam. 那次考试我考得一塌糊涂。
