单词：osmium trichloride
三氯化锇
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台湾籍旅美老师今天交给我们的句子是： We'll get up close with prototypes in new categories like 3D printing, robotics, smart home sensors. And wellsome things that don't even have a category yet. 我们会接近各种新科技的原型
发表于:2019-03-05 / 阅读(151) / 评论(0)
留美老师带你每日说英文
留美老师带你每日说英文