arrangement and combination的用法和樣例：
例句
- Besides, the author understood the rule of negative multiplication completely and studied the problem of permutation and combination deeply.
另外，薩瑪瓦爾完全理解了負數的乘法法則，并對排列組合問(wèn)題也有充分的認識。 - Because of changes wrought by the ceaseless uniting and sundering of protein, every conceivable type of arrangement is produced.
由于蛋白質(zhì)不斷結合分解的變化，各式各樣的排列組合都產(chǎn)生了。
