straight-line distance是什么意思 straight-line distance怎么读
straight-line distance的相关资料
straight-line distance的用法和样例
- You should report any symptoms of PCP straight away because the condition can suddenly worsen without warning.
你应该报告任何症状五氯酚直线距离,因为条件可以突然恶化,在没有警告的。
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