too bad三个重要含义：
1
（等于说“倒霉”或“可惜”，实际上并无同情之意）
used to say ‘bad luck’ or ‘it‘s a shame’ when you do not really mean it
If sometimes they‘re the wrong decisions, too bad.
如果有时这些决定是错误的，那可是太不幸了。
2
遗憾；可惜
a shame; a pity
Too bad every day can‘t be as good as this.
可惜并不是每一天都像今天这么好。
Too bad he used his intelligence for criminal purposes.
他把聪明都用在了犯罪上，太可惜了。
It‘s too bad he hasn‘t come back, yet.
他还没回来，真是。
Too bad if you missed the bus.
你没有赶上公交车只能算自己倒霉。
It‘s too bad to see a fresh flower on a heap of cow-dung. He‘ll be the ruin of her!
鲜花插在牛粪上，真把她糟踏啦！
It is too bad that Eleanor had to leave so soon
埃莉诺不得不这么快就离开，真是太遗憾了。
3
(old-fashioned) 令人生气的；恼人的
annoying
Really, it was too bad of you to be so late.
你来得这么晚实在不像话。
That‘s too bad.
太糟糕了。
It‘s too bad of you to desert her in trouble.
你在她困难的时候抛弃她，真是太差劲了。
‘That‘s too bad,‘ Teddy said without rancour.
“那太糟糕了！”特迪并无怨怒地说道。
Too bad! We‘d just got the wheat to the threshing ground when it started to rain.
真差劲，麦子刚上场就下起雨来了。
She bore no ill will. If people didn‘t like her, too bad
她没有恶意。如果人们不喜欢她，那就太糟糕了。