adj. 安全的;保险的,肯定的;无损的;提供保护的;
n. 保险箱,保险柜;冷藏箱;〈俚〉避孕套;
🗣️ 情景例句
May I take a picture of you and your little boy?
我可以替你和你的小男孩拍一张照吗?
As you travel westward,does the land get higher?
当你向西旅行,陆地变得更高?
One night, the gaoler decided to play a joke on his colleague to find out if, after so many performances, he had managed to learn the contents of the letter by heart.