trail off
US /treɪl ɔf/
UK /treɪl ɔf/

句動詞
1.
途切れる, 消え入る
If a speaker or their voice trails off, they stop speaking or the sound of their voice becomes weaker and weaker and then stops.
例:
•
His voice trailed off as he realized his mistake.
彼は自分の間違いに気づくと、声が途切れた。
•
The conversation trailed off into silence.
会話は途切れて沈黙になった。
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