But it's very good.

這是一種表達(dá)積極前瞻性但又帶有些許保留或警告意味的說法，常見的英文表達(dá)方式可能是：“However, [it's] very good.” 或者“Yet, [it's] quite excellent.” 這樣的表達(dá)既體現(xiàn)了 mixed feelings，同時(shí)肯定了事物的積極方面。

但是這個(gè)非常好的英文是：But it's very good.

但是很好的英文是 However very good。