13. There is no way to hide the freckles in my face.
我臉上的雀斑沒辦法掩蓋。
還能這樣說：
I can't find a way to hide the freckles in my face.
It is very difficult for me to hide the freckles.
諺語：
There is nothing new under the sun.
世上無新事。（來自《圣經》）
14. I'd like to know how to improve my skin.
我想知道怎樣改善我的膚質。
還能這樣說：
I wonder how I can improve my skin?
I'd like to know how to make my skin good.
應用解析：
improve away 通過改良為去除；
improve on 對……加以改進；做出比……更好的東西
15. Before you go to bed, you must take your make-up off.
睡覺前一定要卸妝。
還能這樣說：
Remove the make-up before going to bed.
Please make sure that you take the make-up off before you go to sleep.
16. In some extent, make-up is harmful to your skin.
某種程度上，化妝對皮膚有害。
還能這樣說：
To some degree, make-up does harm to your skin.
Make-up has a bad effect on your skin to some extent.
應用解析：
to a certain extent 某種程度上；
temporal extent 時間范圍
17. The eyebrow can shape your frame of face.
眉毛可以修飾你的面部輪廓。
還能這樣說：
The eyebrow can decorate your face.
The eyebrow has a good influence on the frame of face.
應用解析：
be in bad shape 健康狀況不佳；
in no shape 決不，完全不，一點也不