let back in編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看let back inlet back in — 動詞動詞1. allow someone or something to re-enter a place1.動詞釋義讓重新進入allow someone or something to re-enter a place例句I locked myself out, so my roommate had to let me back in.