Pentavalency
五价
🗣️ 情景例句
Her latest work is a masterpiece.
她是了新的作品是一件杰作。
A heavy purse makes a light heart.
腰包钱财足，心境自然宽。
Mrs.Richards quickly hid in the small storeroom under the stairs.
便赶紧躲到了楼梯下的小储藏室里。