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- 如果我们观察水波的横截面,我们会看到波形是按一定的间隔重复的。
If we look at a cross section of a water wave, we may see that the wave form repeats itself at regular intervals.
- 每个班都代表着整个社会的一个完全相当的横截面。
Each class represented an identical cross-section of the community.
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海词词典,十七年品牌