不他不是我的用英文怎麼表達？

他朝斯萊特利眨了眨眼睛，斯萊特利悲傷地說：“我不這麼認爲。”好像他希望事情不是這樣的。

He winked at Slightly, who said mournfully, "I don't think so," as if he wished things had been otherwise.

我必須告訴林惇，我不寫信不是我的錯，我要讓他知道我是不會變心的。

And I must tell Linton it is not my fault that I don't write, and convince him that I shall not change.