还有其他方式可以表示since，暂时想到这两个 -自从来了中国，我一直在学汉语 -我来了中国以后，一直在学汉语

一月份以来, 我一直在学汉语。 I've been learning Chinese since January 自从来到中国，我每天都说汉语。 Since coming to China I have spoken Chinese every day. since：自从....以来

. 从…至今： There have been many changes since the war. 从战争到现在发生了许多变化。 2. 自从…，自…算来，自…以来： It has been raining since morning. 从早晨到现在一直在下雨。 conj. 1. 以后，在…以后的时间里： She has rung me once since she left. 她离家后给我来过一次电话。 2. [常前接 ever] 自…以来，自…至今： I've been busy ever since I came back. 自我回来后一直在忙。 3. 因为；既然： Since this is so,it's better to accept it. 既来之，则安之。