短語詞組短語turning -point range 轉(zhuǎn)點(diǎn)頻段turning g point 轉(zhuǎn)折點(diǎn);柺點(diǎn)historical turning -point 歷史轉(zhuǎn)折點(diǎn)modern turning -point 現(xiàn)代轉(zhuǎn)曏secondary turning bifurcation point 二次轉(zhuǎn)曏分岔點(diǎn)turning pointbreaking point 轉(zhuǎn)折點(diǎn) 返回 turning point