Spitting in the street is considered to be very bad mannered.

拂逆地吐痰，在街上吐痰是很紧张的坏习气。

youdao

Spitting in the street is considered to be very bad mannered.

不随地吐痰，在街上吐痰是很严重的坏习惯。

youdao

By contrast, scheduled airlines fare much better - 11% of travellers are deterred from scheduled airlines by bad mannered passengers and 15% by noisy children.

相反，定期航空公司的表现要好些——因为乘客没有礼貌而不乘坐定期航空的旅客比例为11%，因为孩子吵闹而不乘坐定期航空的旅客比例为15%。

youdao

To many black Americans, BET is like a bad-mannered relative--dearly loved but a little embarrassing.

FORBES: The cable capitalist

They are bad-mannered, they waffle and in a squeeze they always behave like pigs, even to each other.

ECONOMIST: If in doubt, bash the French