He visited me twice that fall and called me on the telephone often.

那年秋天他来看过我两次，而且经常给我打电话。

The government has twice declined to back the scheme…

政府已两次拒绝支持该方案。

Thoroughly brush teeth and gums twice daily.

每天两次彻底刷净牙齿和牙龈。

Twice before he had been in New York with Gladys on summer vacations.

他之前已经和格拉迪丝两次来到纽约度暑假。

…Foster, who is twice the world champion.

两次获世界冠军的福斯特

I phoned twice a day, leaving messages with his wife.

我每天打两次电话，托他妻子捎口信。

This famous horse race has taken place here twice a year since 1310.

这一著名的赛马比赛自 1310 年以来每年在这里举行两次。

The figure of seventy-million pounds was twice as big as expected.

7,000 万英镑的金额是预期的两倍。

…a report claiming that teachers could be twice as effective if they returned to traditional classroom methods.

声称教师若重新采用传统课堂讲授方法，授课效果会事半功倍的报告

She'd better shut her mouth and from now on think twice before saying stupid things.

她最好闭上嘴巴，而且今后在说出蠢话之前先过过脑子。