您要查找的是不是：
- the to - and - fro of a pendulum 钟摆的往复摆动
- The signals go to and fro at a very high but almost constant speed. 那些信号用非常快但几乎不变的速度来回传送。
- The pendulum swung slowly to and fro. 钟摆在慢慢地来回摆动。
- Buses go to and fro between the center of the city and the city limits. 公共汽车往返行驶于市中心和城市边缘之间。
- Trucks shuttled to and fro on the high ways. 车辆在高速公路上穿梭行驶。
- I have a trick of walking to and fro in my room. 我有个在房中走动的习惯。
- He is walking to and fro in the room. 他在房间内踱来踱去。
- The ship was rolling heavily to and fro. 那船晃来晃去很不平稳。
- The cat made little rushes to and fro after the ball. 猫追着球跑过来跑过去。
- The pendulum swung slowly to and fro . 钟摆在慢慢地来回摆动。
- The tall chimney tottered (to and fro) and then collapsed. 那座高烟囱摇摇晃晃地倒了下来。
- The whole house rocked (to and fro) when the bomb exploded. 炸弹爆炸时整座房子都震得(前後)直晃。
- People are hurrying to and fro in the street. 街道上人来人往。
- This is the theory of a pendulum accelerometer. 摆式加速计的原理。
- Gerhardt roved to and fro like a person in a dream. 葛婆子如同梦中人一般踱来踱去。
- The boat rocked to and fro on the water. 小船在水上前后摇晃。
- The getting of treasures by a lying tongue is a vanity tossed to and fro of them that seek death. 6用诡诈之舌求财的，就是自己取死。所得之财，乃是吹来吹去的浮云。
- The boss traversed to and fro in his office. 老板在办公室来回踱步。
- Of or resembling the motion of a pendulum;swinging back and forth. 属于或像钟摆运动的；前后摆动的
- The clown is jumping to and fro on the stage. 小丑在舞台上来回地跳。
