用trail off造句子，“trail off”造句

Typically, sales trail off as consumers wait for the new model to launch, but that hasn't happened as gas prices continued to soar beyond $4 a gallon and threaten to reach $5 a gallon this summer.

He let his voice trail off and said: "God bless you."

The effects of water and ice, too, are likely to be intermittent, and to trail off at least a bit as the reserves on top of the mountain are used up.