crux of the matter問題: question; problem的: 4次方是 The fourth power of 2 i ...關(guān)鍵: hinge; key; crux; linchpin; ...這正是問題的關(guān)鍵: that's the point這就是問題的關(guān)鍵所在: this is the crux of the matter下載手機(jī)詞典可隨時(shí)隨地查詞查翻譯