Actino-
[医] 放线, 放射
🏥 医学释义
放射线，光线
🗣️ 情景例句
What was the weather like?
那边天气怎么样？
I slipped on the stairs and fell down.I broke my leg.
我在楼梯上滑倒了并且掉下来我弄断了腿的。
Ethanol is more effective at a concentration of 50-70 percent;
乙醇的浓度为50％至70％时比较有效，