Pentavalency
五价
🗣️ 情景例句
and that I care about our children.
而且知道我关心我们的孩子。
Have you send him any pencils?
你送他铅笔吗？
They had mysteriously found their way there from the wine cellar!
这些酒瓶神不知鬼不觉地从酒窖来到了这里。