在語(yǔ)義層面,but所傳達(dá)的對(duì)比和轉(zhuǎn)折意味相較于however更為強(qiáng)烈。就語(yǔ)序而言,but始終出現(xiàn)在其引導(dǎo)的從句開(kāi)頭,而however則具有更大的靈活性,可置于句首、句中或句末。在標(biāo)點(diǎn)符號(hào)使用上,but后通常不使用逗號(hào),而however則需用逗號(hào)與句子的其他部分分隔開(kāi)。

but和however的區(qū)別例句

(1)I thought those figures were correct. However, I have recently heard they were not. 我原本認(rèn)為那些數(shù)字是準(zhǔn)確的,但最近我聽(tīng)說(shuō)它們并不準(zhǔn)確。

(2)Eat to live, but do not live to eat. 吃是為了生存,但生存并非為了吃。

however的用法

1. however作為副詞使用時(shí),意為“然而；但是”,可在句首、句中或句末出現(xiàn)；當(dāng)位于句首時(shí),需用逗號(hào)與句子其他部分隔開(kāi)；位于句中時(shí),其前后均需用逗號(hào)；位于句末時(shí),則前需用逗號(hào)分隔,例如：

(1)She felt ill. She went to work, however, and tried to concentrate. 她感覺(jué)不舒服。然而,她仍去上班,并努力集中注意力工作。

(2)His first response was to say no. Later, however, he changed his mind. 他最初的反應(yīng)是拒絕,但后來(lái)他改變了主意。

2. however也可作為連詞使用,表示“無(wú)論以何種方式,不管怎樣”,用以引導(dǎo)讓步狀語(yǔ)從句,例如：

(1)You can travel however you like. 你可以按照自己的喜好去旅行。

(2)However I approached the problem, I couldn’t find a solution. 無(wú)論我如何嘗試解決這個(gè)問(wèn)題,都未能找到答案。