喜樂美語
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    An incisor is one of the flat-edged teeth at the very front of your mouth. A human adult has eight of them: four on top and four on the bottom, sitting in the middle of the smile. Their job is to bite off a piece of food — like a pair of small scissors — before the canines and the big back molars take over. Children lose their first incisors quite young; those are the classic “tooth under the pillow” teeth. Animals have incisors too: a rabbit’s front teeth are famous incisors, and they keep growing, which is why rabbits must chew. The word is the ordinary one in biology and at the dentist; at home most people just say “front teeth.”

    門牙（牙醫有時稱切牙）

    例句逐字對照、搭配詞、易混淆字

    這一義的完整解析還沒打開。訂閱後可以看到例句怎麼拆、常跟哪些字一起出現， 以及容易跟它搞混的字。

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組成Borrowed from New Latin incisor: incido (“to cut into, cut through”) + -tor (“the one that does it”), so “the cutter.”

同家族的字

原始詞典資料1 筆記錄

以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。

incisornoun/ɪnˈsaɪ.zə(ɹ)/

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    anatomybiologymedicineA narrow-edged tooth at the front of the mouth of mammals, between the canines and adapted for cutting; in humans there are four in each jaw.

資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。