These islands are on the margins of human habitation.

Sharp grade cutoffs are the rule at margins of orebodies.

品位的急剧下降是矿体边界上的规律.

The students wrote notes in the margins of the book.

学生们在书的空白处写上了注释.

A vicious price war between manufacturers has cut margins to the bone.

制造商之间的恶性价格战已将利润削减到了最低。

The reserve board raised margins from 50 to 60 percent.

联邦储备银行董事会将定金从百分之五十提高到百分之六十.

The margins on small cars just aren't high enough.

小汽车的赚头就是不够大.

They have always had to make do with relatively small profit margins.

他们不得不经常设法应付较少的利润额.

The security services will pretty well go to any lengths to winkle out information.

安全部门会不遗余力地套取情报。

I swim 40 lengths a day.

我每天游20个来回。

Harvard won by four lengths.

哈佛大学队领先4个艇位胜出。

We'll need several lengths of string to tie the package.

我们需要几段绳子用来打包.

Jane goes to great lengths to explain that this is not the whole story.

简竭力地解释说那不是事情的全貌。

I ran through the options with him.

我把所有的选择都跟他过了一遍。

I like to keep my options open.

我喜欢留有选择余地.

The car includes air-conditioning among its options.

这辆汽车的配件中包括空调设备.

We are considering the options available to us in this no-win situation.

在这种取胜无望的情形下，我们在考虑有什么选择。

She considered her options.

她仔细考虑了自己的各种选择。

What other options do you have?

你还有什么别的选择吗？

The tasks were arranged in groups, according to age.

这些题目根据年龄分为若干纽.

All neglected tasks are being undertaken.

百废俱兴.

Later he progressed to more difficult tasks.

后来他进而干更艰苦的工作.