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，可以收听真人发音 
小测验：选择正确的单词
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sw
基本释义
- n. short wave的简写
英英解释
1个名词解释
- the compass point midway between south and west; at 225 degrees
[同] southwest, southwestward, sou'-west, sw
- the compass point midway between south and west; at 225 degrees