"Yes," he muttered, his voice so muted I hardly heard his reply.

“是啊，”他轻声说道，声音轻得我几乎听不到他的回答。

《柯林斯英汉双解大词典》

The TV show Star Trek showed some spaceships which could reply to human voice commands.

电视节目《星际迷航》展示了一些能对人类声音命令作出回应的宇宙飞船。

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All you need to do is to click on the button in the lower left of our Wechat interface, reply "economic data" by text or voice.

点击公众号界面左下按钮，文字或者语音回复“经济数据”即可。

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Mark Porterfield, Pimco's spokesman, didn't reply to email and voice messages seeking comments.

WSJ: Pimco Fund Set for First Annual Outflow