He mumbled some lame excuse about having gone to sleep.他含含糊糊地找了个蹩脚的借口，想要解释自己为什么睡着了。"I don't understand," the Inspector mumbled, passing a hand through his hair.“我不明白，”巡官一边嘟囔道，一边用手捋了一下头发。He mumbled a few words.他小声咕哝了...
He outboxed bigger and heavier opponents.他在拳击中打胜比他又大又重的对手.The lighter version used liquid hydrogen, the heavier used hypergolic propellants.较轻的推进器采用液态氢, 较重的采用自燃推进剂.The snowfall was becoming heavier ; it was sticking to t...