大多数牙医建议封闭恒牙的磨牙和双尖牙，因为磨牙的窝沟比较深，乳牙通常不用做窝沟封闭。

Most dentists recommend the permanent molars and premolars to be sealed because these are the teeth that have the deepest grooves.

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大家一窝蜂拥到据说是孩子坐过的地方，一双双满怀希望的眼睛使劲盯住阿其的手指，想看清楚他到底指的是什么东西。

There was a general plunge for the ground at the place where the child was alleged to have rested, and many eyes tried hard and hopefully to see the thing that Archys finger was resting upon.

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颈静脉球窝于双侧眶耳线平面上的总出现率为37.0%（40/108）。

The occurrence rate of jugular vein bulb at both side of OML plane was37.0%(40/108).

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