牙齿英语定义

（单数，一颗牙）tooth.（复数，两颗牙以上）teeth.

牙齿英语是：tooth。发音：英[tu_θ]，美[tu_θ]。例句：1、My tooth really hurts.我牙齿特别疼。2、They look like the teeth of some fierce animal.它们看上去像是某种猛兽的牙齿。3、The dentist scaled and polished my teeth.牙医为我刮除牙石，抛光了牙齿。4、Teeth have a hard surface layer called enamel.牙齿有一层叫做釉质的坚硬表层。5、He laughed, revealing a line of white teeth.他笑了起来，露出一排洁白的牙齿。6、Some dinosaurs had only rudimentary teeth.有些恐龙只有未充分长成的牙齿。7、My tooth is hurting today.I should go to the dentist.今天我的牙齿很痛。我该去看牙医。

单数：tooth， 复数：teeth。

单词解析：

1、tooth

读音：英 [tuːθ] 美 [tuːθ]

n. 牙齿；齿状物；粗糙表面；嗜好

This tooth is sensitive to cold.

这颗牙对冷过敏。

2、teeth

读音：英 [tiːθ]  美 [tiːθ]

n. 牙齿  名词tooth的复数形式.

He usually has a cigar vised in his teeth.

他通常用牙齿叼著一支雪茄。

相关词：

1、gum

读音：英 [ɡʌm]  美 [ɡʌm]

n. 牙床；树胶；齿龈；粘性物质

v. 搞砸；用牙床嚼；以树胶粘合

He has some sore swellings on his gum.

他牙床肿痛。

2、gumline

英 ['gʌmlaɪn]  美 ['gʌmlaɪn]

n. 牙龈

Place the bristles of the brush ninety degrees to the gumline.

刷毛和牙龈缘呈90度。