There is a direct correlation between exposure to sun and skin cancer.

　　皮膚暴露在太陽下與皮膚癌直接相關(guān)。

　　The skin on her hands was hard and rough.

　　她手上的皮膚粗糙而沒有彈性。

　　Use a soap that is mild on the skin.

　　使用對皮膚刺激性不強(qiáng)的肥皂。

　　Hot sun and cold winds can soon dry out your skin.

　　火辣辣的太陽和寒風(fēng)可使你的皮膚很快變干燥。