I'm very sorry to hear that.
他感到很憂郁。
He feels blue.
我對(duì)你的不幸感到十分傷心。
I'm feeling very sad about your misfortune.
他情緒低落。
He's down in the dumps.
他意志消沉。
He's downhearted.
我由于失敗而感到很沮喪。
I'm very depressed about my failure.
他顯得很消沉。
He looks glum.
我很孤獨(dú)。
I feel lonely.