(英译中)When the reply came a few months later they were enrolled as full members, but Chu Teh's membership was kept a secret from outsiders.
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五四运动是一次彻底的不妥协的反帝反封建的革命运动。译文:()was a thoroughgoing and uncompromising revolutionary movement against imperialism and feudalism.
预硫化过程用硫化剂和烃类充填催化剂孔道,因而催化剂无需干燥。
翻译:Soaps are made from vegetable and animal oils.