1. 他的拒絕是那樣委婉得體，所以我們并未感到不快。
   His refusal was worded in such a graceful way that we could not be offended.
2. 從他的信上看，我估計他并不快樂。
   From his letter I surmised that he was unhappy.
3. 我因為旅行的不適而感到不快。
   I was unhappy because of the discomforts of travel.
4. 他因與母親分離而感到不快。
   He was unhappy because of his separation from his mother.
5. 我偶然聽到他們說，他們很不快樂。
   I overheard them saying they were unhappy.

不的英語翻譯：

快的英語翻譯：