Ulcus cancrosum
[醫] 癌性潰瘍
?? 詞語組成解析
潰瘍
??? 情景例句
There are other boys and girls here,
還有其他男孩女孩在這兒，
Who minds his own business has no time to mind other folks.
為人只顧自己事，就無時間關心人。
I had a little accident last Sunday.
上星期天我出了個小事故。