alternation

UK:  [ˌɔːltə'neɪʃ(ə)n]

复数：alternations  

n.

1.〔技〕更替;间隔;循环;半个周期;〔数〕错列;区别;种类;〔计〕交替工作;〔电信〕变换

2.交替,更迭,变换;间隔

3.轮换

4.轮流发球

5.互相

6.半周期

7.比较方案

8.【农业】轮种

9.【数学】错列

10.【植物;植物学】交错

1 . The food selected is often eaten together with some rice either in one bite or in alternation.
选择的食物一起吃的往往是一些大米无论是在一咬或交替。

2 . If it were unique a gem I could breach it into a hundred sections and cord them into a alternation to put on your neck.
如果它是一块宝石，我就能把它碎成千百颗粒，穿成项链挂在你的颈上。

3 . Natural or artificial cycle of light and darkness alternation to which living organisms may be exposed .
自然界或人造的能够影响生物有机体的亮暗循环。

4 . Miss Crawford was soon to leave Mansfield, and on this circumstance the "no" and the "yes" had been very recently in alternation.
克劳福德小姐很快就要离开曼斯菲尔德了，因此在最近，那肯定和否定的念头在交替出现。

5 . Alternation of generations The occurrence of two, or occasionally more, generations during the life cycle of an organism.
有机体生活史中出现二个或者两个以上世代的现象。