conj (1)虽然，尽管(despite the fact that)：T～it was hard work，he enjoyed it. 虽然工作辛苦，但他干得挺快活。T～he tried very hard，he failed the course. 虽然他非常努力，但这门课仍没有及格。T～it was very late，the child wouldn't go to sleep. 尽管天已经很晚了，但这个小孩就是不睡觉。T～our chances of winning are pretty slim，I think we should play the game. 尽管我们赢的希望很渺茫，但我认为我们应该打这场比赛。She went out，～it was raining. 尽管正下着雨，但她还是出去了。He still argues，～he knows he's wrong. 虽然他知道自己错了，但他仍然在吵。The paper，～well conceived，was badly written. 这篇论文尽管构思很好，但写得太糟。Poor though she is，she's always cheerful. 她尽管穷，却总是很快活。

(2)可是，然而，不过(but at the same time;but nevertheless)：She is small，～strong. 她个子很小，不过很强壮。He knows he's wrong，～he still argues. 他知道自己错了，可是他还在吵。

as though 好像：It seems as～the place is deserted. 看上去这块地方好像被遗忘了。He closed his eyes as～to shut out his unpleasant memories. 他闭上眼睛，好像要把一切不愉快的记忆都忘掉似的。

adv 然而，不过，可是(however，nevertheless)：It was hard work. He enjoyed it～. 工作虽然苦，但他干得很快活。It's raining. I didn't get wet～，because I had my big umbrella. 下雨了，但我没淋湿，因为我带着我的大伞。I'm out of town often;I'll be here at Christmas，～. 我经常不在城里，但圣诞节期间我会在的。

【注意】不能把副词though 放在句首。

【辨异】though 与although的区别见ALTHOUGH。