emissions 是 emission 的複數emissionKK [ɪˋmɪʃən] /ɪˈmɪʃən/名詞1排放、排放量常用複數The new law aims to cut carbon emissions by half.新法律的目標是將碳排放量減少一半。2排放物、廢氣Factory emissions have polluted the river for decades.工廠的排放物已污染這條河數十年。3發射、散發、放出Scientists measured the emission of light from the crystal.科學家測量了晶體發出的光。4發行正式The bank announced the emission of new bonds next month.銀行宣布下個月發行新債券。