to show the teeth

" I want the zipper teeth to show no flap," he said.

我想把拉链齿露在外面&不要盖儿，他说。

Case patients of teeth slight crowding are treated by using titanium nickel wire to arch lips and cheeks for aligning the teeth. The results show that the minimum space is 1.0 mm, the maximum

用钛镍丝唇弓唇颊向开展排齐轻度拥挤患者26例，结果：开拓间隙最少为1.0mm，最多为4.5mm，平均2.5mm，疗效良好，临床操作明显简单，值得推广应用

" It certainly does," I chuckled as he opened his mouth to show all his teeth, minus the one in his little hand.

“的确是啊。”我轻声笑着说。儿子张开嘴巴向我展示他全部的牙齿，除了握在他小手中的那颗。

smile broadly so as to show the teeth (expressing amusement, foolish satisfaction, contempt etc. )

露齿而笑（表示高兴，愚蠢的满足，轻蔑等）

If two dogs bark, show their teeth, jump at each other, that is just a show, they are trying to feel the pulse, who is the stronger.

如果两只狗对着叫，龇牙咧嘴，互相颠扑，那只是一种表现，它们在试图摸底，谁更强大。