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- Each observation cycle lasted 7 days.Results showed the parrots exhibited 10 different kinds of behaviors daily.The most frequent behavior was rest, followed by looking around a preening. 结果表明，灰鹦鹉的日常行为有10多种，其中发生最多的行为是休息行为，其次为观望行为以及梳理行为。
- The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
- It's easier to cycle with the wind behind you. 顺风骑车省力。
- A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
- The seasons of the year make a cycle. 一年四季构成一个循环。
- He was taken into hospital for observation. 他被送进医院观察。
- The business cycle experienced a sudden down. 商业周期经历了突然的萧条。
- Careful observation convinced them that is was so. 仔细的观察使他们相信情况是这样的。
- 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。
- It's basically wrong to have observation taken off from hearsay. 以道听途说作为意见的根据是根本错误的。
- 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。
- The pedals of a cycle are attached to the crank. 自行车的踏板与曲柄相连。
- He is a man of little observation. 他是个观察力极差的人。
- They decided to put him under observation. 他们决定监视他。
- Her latest stunt is riding a motor cycle through a ring of flames. 她的最新特技表演是骑摩托车钻火圈。
- He was under observation by the police. 他受到警方严密监视。
- The engine cycle during which this process occurs. 压缩周期上述机器压缩过程的周期
- I had to cycle all the way to work against the wind. 我不得不一路顶着风去上班。
- I am unable to cycle to school because my bicycle is broken. 我不能骑车上学，因为我的自行车坏了。
