ulcer
n
open sore containing poisonous matter on the outside of the body or on the surface of an internal organ 溃疡: leg ulcers 腿部溃疡
gastric ulcers 胃溃疡
My mouth has an ulcer. 我的口腔出现了溃疡.
Just let me wipe your table and then I'll take your order. OK?
让我先吧桌子擦擦再听您点菜好吗?
For example, you might pick up a travel book and read a few pages before going to sleep. It is enough to dip into it and read bits here and there. In a word, this is tasting.