verb, punctuation, modal particle, particle, pronoun, adverb · used as a resultative complement to indicate removal, completion, or fulfillment

把这些过期的食物扔掉。

verb, directional, punctuation, particle · to fall, drop, or lag behind

树叶掉到了地上。

verb · to lose something, go missing, or decrease in value, price, or weight; to shed hair or color

我的钥匙掉了。

verb · to change, exchange, or swap positions

我们两个掉一下位子。

verb · to show off or display one's cleverness or knowledge

他总喜欢在人前掉书袋。

verb · to turn, swing, or wag

他掉过头去，假装没有看见路边的熟人。