您要查找的是不是：
- The engine is acting up. 发动机出毛病了。
- The vacuum cleaner is acting up again. 真空吸尘器又出毛病了。
- The engine began to act up and he thought he would have to hit the silk. 引擎开始失灵，他心想非要跳伞降落不可。
- The engine is only firing on three cylinders. 这发动机只有三个汽缸工作。
- The car's engine is beginning to act up. 汽车的发动机开始出毛病了。
- The engine is due for an overhaul. 那台发动机该大修了。
- The engine is running smoothly now. 发动机现在运转得很顺畅。
- The engine is misfiring badly on one cylinder. 发动机有一个汽缸严重失灵。
- My sprain ankle have is acting up badly all week. 我的脚扭伤了, 整整难受了一个星期。
- Her arthritis is acting up again. 她的关节炎又复发了。
- The kid is acting up for our benefit. 孩子正在做出各种动作来逗我们注意。
- The kid is acting up for our attention. 这个孩子正在做各种动作来逗引我们注意。
- The needle pulsates when the engine is running. 发动机开动时指针就颤动.
- The engine is external to the boat. 发动机在船舷之外。
- The engine is dirtied, and worn from aging. 这台发动机因为使用年代太久而污损了。
- The engine is a Briggs &Stratton 5hp model. 该引擎是一种布里格斯&斯特拉5 HP模型。
- The engine is only firing on three cylinders . 这发动机只有三个汽缸工作。
- If the engine is heard to be knocking at any time, it must be slowed down at once. 不论什么时候如果听到发动机有撞击声，都必须立刻降低运转速度。
- My left knee acts up in damp weather. Her arthritis is acting up again. 我的左膝一到阴湿天气就犯病。她的关节炎又犯了
