音標(biāo)發(fā)音英式音標(biāo) [?na?.tr?.d??n ?sa?.k?l]美式音標(biāo) [?na?.tr?.d??n ?sa?.k?l]英式發(fā)音 美式發(fā)音 基本解釋氮循環(huán)。同根派生 the nitrogen cycle相關(guān)詞英英字典劍橋英英字典 the process by which nitrogen is exchanged between different living organisms on earth and between living organisms and the environment, for example when plants take it from the air and animals eat the plantsthe nitrogen cycle劍橋字典the nitrogen cycle柯林斯字典