Sigmoidoscope
n. 乙状结肠镜\\n[医] 乙状结肠镜
🗣️ 情景例句
One picture is worth a thousand words.
百闻不如一见。
What day is today?
今天是星期几？
' I looked down and nearly fell off the ladder when I saw a policeman.
”我向下面看去。当我看清是一个警察时，差一点儿从梯子上掉下去。