"Shh!" Sunny winced.

“嘘！”森尼皱眉蹙额地说。

Conclusion: Shh and its receptor are expressed during the late bell stage of mouse tooth germ.

结论: Shh及 其受体Ptc在小鼠牙胚钟状晚期有表达.

The mothers on the bus go shh, shh, shh, all day long.

整天都在嘘, 嘘, 嘘.