till是什么意思 prep. 直到, 在...以前, 迄conj. 直到...为止vt. 耕种n. 放钱的抽屉, 备用现金, 冰碛 n. unstratified soil deposited by a glacier; consists of sand and clay and gravel and boulders mixed togetherv. work land as by ploughing, harrowing, and manuri...