Hydronephrectasia
积水性肾盂扩张
🗣️ 情景例句
do I really have to
我是不是真的有必要
She began playing the violin when she was nine.
九岁的时候，她开始拉小提琴。
After crossing the Equator, the captain called in at a port to have a new rudder fitted,
跨越赤道后，船长将船停靠在一个港口，在那儿换了一只舵。