Quadrivalvular
[医]四裂爿的, 具四瓣的
🗣️ 情景例句
What am I supposed to do?
我该做什么？，
No man is born wise or learned.
人非生而知之。
Soon afterwards, the balloon began to descend and it landed near an airfield.
不久，气球开始降落，在一个停机坪附近着了陆。