behave[bɪˈheɪv]
vi. 表现;运动;守规矩
It's hard to train children to behave well at the table.
riddle[ˈrɪdl]
n. 谜,谜语
That painting is still a riddle to us.
primary[ˈpraɪmərɪ]
adj. 首要的;最初的;基本的
The demand for primary products is on the increase in European market.
former[ˈfɔ:mə]
adj. 前任的;先前的;早先的
It was more in sorrow than in anger that he criticized his former colleague.
maid[meɪd]
n. 女佣,女仆
Her maid helped her to dress up for the party.
knee[ni:]
n. 膝,膝盖,膝关节
I've bumped my knee on the wall.
quit[kwɪt]
vt. 放弃,辞去(工作);停止
He quit in disgrace over the bribe.
but[bʌt]
conj. 但是,可是
But for the safety-belt I wouldn't be alive today.
decay[dɪˈkeɪ]
vi. 腐烂;衰败
Dentists advise their patients to brush and floss regularly to prevent their teeth from decaying.
error[ˈerə]
n. 错误,差错;过失
An alert listener will have noticed the error.