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The islanders are a strong breed of people. 这些岛上的居民是一种体格强壮的人。
The pedal of a cycle is attached to a crank. 自行车的踏板与曲柄相连。
Of this breed we can make short shrift. 这个品种，我们能很快解决。
Lactation is the final phase of the reproductive cycle of mammals. 泌乳是哺乳动物繁殖周期的最后阶段。
Spaniel is a breed of dog with large ears. 西班牙猎狗是一种长着大耳朵的猎狗。
Wild animals don't breed well in captivity. 野生动物圈养时不好繁殖。
It's easier to cycle with the wind behind you. 顺风骑车省力。
Birth is much, but breeding is more. 出身重要，教养更重要。
A unit of frequency equal to one cycle per second. 赫兹频率的单位，等于每秒一周
Many animal breed in the spring. 很多野兽在春天繁殖。
The seasons of the year make a cycle. 一年四季构成一个循环。
The reproductive quality of audio tapes has improved enormously. 录音磁带的复制质量有了很大改进。
The business cycle experienced a sudden down. 商业周期经历了突然的萧条。
Random mating within a breeding population. 自由交配在一个育种群中自由交配
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。
They used to breed fish in the reservoir. 他们过去一直在水库养鱼。
Cycle across America? Sounds a bit dodgy to me. 骑自行车横越美国? 听起来有些冒险。
We have the finest breed of sheep. 我们拥有最优品种的羊。
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。