We had to have a sense of humour because of the craziness of it all.

to be on sentry duty

放哨

Each time they passed a sentry their hearts pounded, fearful that he would stop them.

他们走过一个步哨的时候,心禁不住怦怦地跳, 很担心他会把他们拦住,幸而步哨把他们放过去了.

The sentry challenged the stranger at the gate.

哨兵盘问门口的陌生人.

A sentry , huh ? Isn't there another way out of there?

哨兵, 是 吗 ?那边有没有什么路?

The sentry stayed in his box to avoid the cold.

哨兵躲在哨所里避寒.

Knowing that danger threatened the sentry kept an extra careful watch.

由于知道随时都有可能发生危险,那个哨兵格外加强了戒备.

Scarlett thanked him and followed the sentry.

思嘉向他道谢,然后跟着哨兵走了.

The sentry was ordered to shoot on sight.

哨兵奉命一发现目标就射击.

A sentry gave the challenge.

哨兵发出口令.

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.