Discolorment
n. 变色;污点
🗣️ 情景例句
In addition, it's great exercise too, since we do a lot of hiking.
还有，那也是个好的运动，因为我们要长距离徒步旅行。
I had met Stone, too.
我也见过。
During a second trip to the USA in 1912.
在1912年第二次赴美期间。