当摄像机在执行它的神奇的职责时，你就要保持露齿笑，这实在是太让人难以想象了，于是，一种坚定而茫然的凝视成了常态。

The thought of holding a fixed grin as the camera performed its magical duties was too much to contemplate, and so a non-committal blank stare became the norm.

youdao

在你的南瓜上面，雕上一个吓人的露齿笑。

Carving your pumpkins with big scary grins.

youdao

你的目标是露齿笑，但不像你平常的笑时露出那么多的牙床或牙齿。

Aim for a grin that doesn't show as much gum or teeth as you would when you are laughing.

youdao