单词 透皮 例句 DEFINITIVE EXAMPLES 权威例句〔penetration〕Sunscreens can help reduce the penetration of ultraviolet rays into the skin.防晒霜可以减少紫外线穿透皮肤。剑桥高阶〔puff up〕Her body bloated and puffed up till pain seemed to burst out through h...