单词 | smokescreens |
例句 | DEFINITIVE EXAMPLES 权威例句Nowadays, smokescreens need to block not only visible light but also the infra-red sights that soldiers use to spot targets.现在,烟幕不仅需要能够遮挡可见光,还要求能挡住士兵用来发现目标的红外线。剑桥国际 |
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