Not sure that my explanation makes sense

來源: 馬下人 於 2015-02-03 12:38:39 [] [博客] [舊帖] [給我悄悄話] 閱讀數 : (387 bytes)

be 是係動詞， 表狀態（是或不是, 不存在‘正在是’）
Dog has been the most friendly animal to human since human started to domesticate wild animals.


walk 作為動詞， 可以講‘正在走’
Human have been walking using only two rear limbs since they were no longer apes.(一直用兩條腿走， 現在亦如此）

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• Thanks. -肖莊- ♀ 給 肖莊 發送悄悄話 肖莊 的博客首頁 (0 bytes) () 02/03/2015 postreply 20:22:21

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