Rectosigmoid
[医] 直肠乙状结肠的
🗣️ 情景例句
How are you?
你好吗？
There was a big crowd and we had difficulty getting a taxi.
外面有一大群人并我们有很困难招一辆出租车。
It is impossible to give a satisfactory explanation for a pot-holer's motives.
要想对洞穴探险者的动机作出满意的解释是不可能的。