届时的英文：
when the time comes
at the scheduled time
on the occasion
at the appointed time
at the occasion
then

参考例句：

Your presence is cordially requested for the occasion.
届时敬请光临。

His Royal Highness the Duke of Smith The Secretary of State for Education of Great Britain will be present.
届时英国教育大臣史密斯公爵殿下将出席。

At that time, the pontiff, Pope John Paul II may attend the meeting
届时教宗若望保禄二世或将参加这次会议。

At that time, it would be necessary to set up a more effective funding market.
届时自然有需要建立一个更有效率的融资市场。

It will be most interesting and informative to hear Mr.Smith.
届时能聆听到史密斯先生演讲，定会是极为有趣和增长见识的。

If he is right, Chinese authorities may slam on the brakes, even at the risk of putting the economy into a skid.
如果他的判断准确，届时中国政府可能会猛踩刹车，甚至不惜让经济减速。

It is an annual grandeur folk ceremony, when all villagers, in rich dresses, sing and dance to their full satisfaction.
它是景颇族一年一度盛大的民俗活动，届时全体村民都着盛装参加，尽情歌舞。

I will be in Beijing later this moth, so hopefully, we can meet at that time to discuss the position.
我将本月晚些时候到北京来,很希望届时我们能当面讨论该职位。

"Then send Back the postcard and we'll gladly tell you--without a Bit of obligation, of course."
"届时,用明信片告知我们,本公司乐意奉告,当然不会增加任何麻烦"

Then this obligation shall be null and void, but otherwise it shall be and remain in full force and effect
届时,本承包书所承担之义务即告终止和失效。否则仍保持完整有效。

when是什么意思：
conj. 在…时候；在…之后；一…就；考虑到，既然；虽然，然而
adv. 什么时候，何时；在那时；当时
pron. 什么时侯；何时
n. 时间

Tact is the art of recognizing when to be Big and when not to be little
知道何时应该宽宏大度,何时不应量小器微,是谓练达

Time flies when you are online.
上网的时候时间过得飞快。

When you see him, book!
当他见到他时，迅速离开！

time是什么意思：
n. 时间；（一段）时光；时机；机会；历史时期；时代；次；回；倍
v. 测定…所花时间；调准；调整；测定…所花时间
adj. 时间的；定时的；定期的；分期的

discrimination time
辨别时间辨别时间

It is time to go.
该走了。

They are not in step with the times.
他们跟不上时代的步伐。

comes是什么意思：
n. 伴星；伴引血管
v. come的第三人称单数

The bale will be coming.
不幸就要降临了。

Come on get with it!
好啦，时髦点儿吧！

Illness comes in by mouth and comes out by it
病从口入祸从口出