单词 deep well 例句 DEFINITIVE EXAMPLES 权威例句〔dead〕Then he heard a piercing scream echoing down the deep well, ending in a dull, dead thud.接着他听见深井里回响起一声刺耳的尖叫,然后是砰的一声闷响,再之后就什么也听不见了。柯林斯高阶〔dead〕Then he he...