A sentry gave the challenge.

The sentry stood down at 6 a.m.

哨兵在上午六时下岗.

A sentry give the challenge , who goes there?

哨兵喝问:'谁'?

A week later the man came back , and once again, the sentry looked in the truck.

一周后,那人又来了, 哨兵再次检查汽车上的行李箱.

The sentry held up his hands in astonishment.

那步哨愕然地举起双手.

They stood sentry over the wounded.

他们站岗守卫那些伤员.

The sentry has been found sleeping at his post many times.

已多次发现该哨兵在值勤时睡觉.

The sentry made straight for him a drawn sword.

哨兵拔剑向他直扑过去.

The sentry would not let her enter...

警卫不让她进去。

to be on sentry duty

放哨

Calculation of R _ ( min ) for flux or slag is of signifi-cance in welding, ESR and protective casting.

不同熔剂或熔渣的R_ ( min ) 计算值对电渣重熔、保护浇铸及焊接的工艺过程有一定指导意义.

As well known, the lung cance is partly caused by smoking too much at least.

众所周知, 肺癌至少部份地是由于吸烟过多而引起的.

So this research is of practical and academic signify-cance.

所以对热机械疲劳问题的研究具有巨大的理论和工程实际意义.

Some Afro-Caribbeans are rejecting the whole race relations industry

一些加勒比黑人在抵制整个种族关系运动。

The spatial data index betakes the spatial data structure based on the improved R-Tree structure, and the property index uses the B+ tree data structure.

空间数据索引采用基于改进R-Tree的空间数据索引结构，属性数据索引采用B~+树数据结构。

The lack of oxygen in the blood results in the blood results in the blue colour of the blue babies.

血液中缺氧导致婴儿皮肤呈现青色。

A video posted on the company's Instagram account shows a bundle of three snoozing blue babies cuddled up together in a blanket.

公司的Instagram账户上发布了一段视频，视频中三个蓝色的“小宝宝”互相依偎着在毯子上。

Near the coast, watch for large wind changes due to sea breezes.

在海岸附近要注意观察由海风引起强风的变化.

They betook themselves towards the town.

他们朝城里走去.

He betook himself to his own kingdom.

他到自己的王国去了.

She betook herself to the fair.

她到集市去.