She bought it on a whim.

You cannot call the emergency number on a whim.

急救电话是不能随意拨打的.

Under the new rules, credit-card companies can't jack up interest rates on a whim.

在新法案规定下, 信用卡公司不能凭着心血来潮随意提高贷款利率.

Along with a fellow Parkinson's sufferer, Temple decided, on a whim, to form a choir.

而后, 谭普一时兴起, 决定与同为帕金森氏症的病友组成合唱团.

Regulations are changed on a whim, resulting in aberrant results that distort long-established competitive values.

规则可以因为一时的兴致而改变, 造成的异常结果扭曲了确立已久的竞争价值观.

As president, he can dissolve parliament on a whim.

作为总统, 他可以随意解散议会.

He picked people on a whim, without rhyme or reason.

他选人时总是随心所欲，毫无根据。

The meeting was postponed on account of the chairman's illness.

由于主持人生病,会议延期了.

I don't want to upset her on account of the milk.

我不想让她不高兴,要不,会影响奶水的.

The flight was postponed on account of bad weather.

因为天气恶劣,飞行延期了.

We're late on account of the bad traffic.

我们迟到是因为交通拥挤.

On account of his extravagance he was plunged into heavy debt.

由于挥霍浪费,他负债累累.

A newly-married couple, he thought, on account of their walking so close together.

看俩人走路时挨得这么近，他觉得他们是新婚夫妇。

The old worker retired on account of age.

老工人因年老而退休.

Original mail returned on account of incorrect address.

地址不符,原件退回.

Bill cannot come to the meeting on account of illness.

比尔因病不能到会.

Bombers were put on alert during the crisis.

危机时刻,轰炸机处于警戒状态.

This will leave the earth vulnerable, so we're still on alert.

这会让地球容易被攻击, 所以我们仍然处于警戒状态.

Some 7,000 police will be on alert.

7000警察将在戒备.

Although they may appear dead, they sometimes spring up to attack, so always be on alert.

它们也许看上去已经死去, 但有时它们也会奋起战斗, 时刻处于警戒状态.

Please be on alert against strangers in your premises.

提高警惕,尤其注意租区内的陌生人.