商埠
commercial port; trading port; treaty port (old)
上不了台面
better kept under the table (idiom); not to be disclosed; too inferior to show in public
上不得台盤
too uncouth to appear in public (idiom); unfit for a public role
伤不起
(slang) it's just the pits!; so unfair!; unbearable
天上不会掉馅饼
there is no such thing as a free lunch (idiom)
时代不同,风尚不同
customs change with time (idiom); other times, other manners; O Tempora, O Mores!
比上不足比下有余
to fall short of the best but be better than the worst; can pass muster