1. For they came and went with such frequency that I never even got a chance to learn their names.
    因为他们来匆匆，所以我甚至都没有机会知道他们的姓名。

2. What´s the frequency of this broadcast?
    这广播的频率是多少?

3. The band played several marches.
    乐队演奏了几首进行曲。

4. This depends on the precise radio- frequency of the 21- cm wavelength, or 1420 megacycles per second .
    这种方法依靠21厘米波长或每秒1420兆周的精确无线电频率。

5. This depends on the precise radio- frequency of the 21- cm wavelength, or 1420 megacycles per second .
    这种方法依靠21厘米波长或每秒1420兆周的精确无线电频率。

6. This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second.
    这种通迅联系要靠21厘料波段，即每秒1420兆周的精确无线电频率。

7. The realization hit me that I can expect this kind of personal contact with death to occur with greater and greater frequency.
    我顿时意识到我与死亡的接触会越来越频繁。

8. He is a member of the brass band.
    他是铜管乐队的一员。

9. He stretched the rubber band till it snapped.
    他把橡皮筋啪的一声拉断了.

10. Six hundred years ago, Sir John Hawkwood arrived in Italy with a band of soldiers and settled near Florence.
    六百年前,约翰,霍克五德爵士率领一帮兵士到达意大利, 并在佛罗伦萨附近驻扎下来.

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