“嘀咕”造句

他听到人群前面有人在小声嘀咕什么。
He heard muttering from the front of the crowd.

“为什么你不能告诉我?”我嘀咕道。
"Why can't you tell me?" I whined.

他们一边摇头,一边阴沉地小声嘀咕
They shake their heads and mutter darkly.