兩者均可表示轉折或對比术吗，意為“但是”、“可是”帆精、“然而”等较屿，但有區(qū)別：
1. 表示轉折時，but 是連詞卓练。
He is young but very experienced.
他雖年輕隘蝎，但經(jīng)驗很豐富痒玩。
He has three daughters but no sons.
他有3 個女兒牍鞠，但沒有兒子。
He likes sports, but his wife likes music.
他喜歡運動勋陪，而他妻子則喜歡音樂整吆。
2. however 表示“然而”、“可是”時辉川，有的詞書認為它是連詞表蝙，有的詞書認為它是副詞。之所以將其視為副詞乓旗，也許是因為像許多副詞一樣不僅能位于句首府蛇，而且能位于句中(注意前后使用逗號)，甚至句末 (注意其前也用逗號)屿愚。
Later, however, he changed his mind.
可是他后來改變了主意汇跨。
He hasn't arrived. He may, however, come later.
他還沒有到，不過他等會兒可能會來妆距。
He said that it was so; he was mistaken, however.
他說情況如此穷遂，可是他錯了。
注：以上各例中的 however 不能換成 but娱据，但可用 but 來改寫蚪黑。
He said that it was so, but he was mistaken.
他說情況如此，可他錯了。
3. 當連接兩個句子時忌穿，其前通常應用分號抒寂，或另起新句。
It's raining hard; however, I think we should go out. / It's raining hard. However, I think we should go out.
雨下得很大掠剑，但我想我們還得出去屈芜。
注：上例中的 however 不能換成 but，但可用 but 來改寫 (注意所用標點的變化)朴译。
It's raining hard, but I think we should go out.
