“嘘，看这个！”他悄悄对朋友说，不想让老师听见。

"___Psst, check this out!" he whispered to his friend, trying not to let the teacher hear.

老师竖起手指放在嘴边，发出轻轻的“嘘”声提醒我们安静。

The teacher put a finger to her lips and made a soft ___pss sound to remind us to be quiet.