They'd
(=they had, they would)厚皮的
??? 情景例句
But?
但是？
I'll probably stay home and watch television.
我希望可以呆在家看電視。
Portable boiling elements that can boil small quantities of water are useful when the right voltage of electricity is available.
如果有相配的電壓，可以煮少量水的便攜式熱水裝置是有用的。