force 作抽象名词解时,意为"力量,暴力";作可数名词解时,意为"自然力,势力"。
He didn't use much force.
Religion and politics are powerful forces in society.
15.ethic / ethics
ethic以单数形式出现时,表示"道德标准";以复数形式出现时,表示"伦理,道德规范"。
the Christian ethic基督教伦理
The ethics of his decision are doubtful.
16.violation / violations
violation作抽象名词解时,是"违背,违反";作可数名词解时,是"违犯行为"。
He was fined for his violation of the traffic laws.
These are gross violations of human rights.
17.business / businesses
business 作不可数名词,表示"买卖;商业";作可数名词,表示"商业机构,商店"。
We don't do much business with foreign companies.
Many small businesses have gone bankrupt recently.
18.privilege / privileges
privilege 作不可数名词,表示"(有钱有势者的)特权";作可数名词,表示"特别给予的好处或待遇、优惠"。
The beautiful girl had led a life of luxury and privilege.
What are the privileges that go with the job?