Switch arrows and signals of semaphores and transport costly presents from one station to another.

Our rushing is understandable, but costly.

我们整日忙忙碌碌是可以理解的, 但也为此付出了沉重的代价.

Creating appropriate learning space does not require costly renovations.

创造适当的学习空间不需要太多费用.

That is a costly house.

那是一座豪华的房子.

It was a costly ( or expensive ) error.

那是一次损失很重的错误.

Our former process was too costly.

我们上道制造程序成本太高.

They bribed him with costly presents.

他们用贵重的礼物贿赂他.

This dictionary is very useful, only it is a bit costly.

这本词典很有用, 左不过贵了些.

It was a costly victory.

那是一次代价很高的胜利.

An indiscreet remark triggered off a long and costly strike.

一次轻率的讲话导致长时间、代价高昂的罢工.

It must be very costly to keep up a house like this.

维修这么一幢房子一定很昂贵.

At the required level of visual verisimilitude, computer animation is costly.

要使电脑动画的视觉效果达到要求的逼真程度，花费会十分昂贵。

Having curtains made professionally can be costly.

找专业公司制作窗帘会非常昂贵。

It can be costly to refinance.

再融资有时费用会很高。

Cadets are having to use football rattles to simulate gunfire because blank ammunition is too costly.

空包弹太昂贵了，军校学员不得不用足球比赛时助威用的响板来模拟枪声。

These small promotions were costly and they did nothing to increase his bottom line.

这些小规模的促销活动成本很高，而且对增加他的最终效益没什么贡献。

Coastal defence is a costly business.

海防事务很耗费资财。

Psychometric tests can save organizations from grim and costly mistakes.

心理测试能够使组织机构避免犯下损失惨重的大错。

Their costly and futile attempt to subjugate the Afghans lasted just 10 years.

他们大动干戈想要控制阿富汗地区，但只持续了10年就无果而终了。

Buying new furniture may prove too costly.

购买新家具可能会花钱太多。

It is chiefly through reading books that intellectuals acquire the experience of our predecessors.

知识分子接受前人的经验,主要是靠读书.