迄今的英文：
so far
to date
until now

参考例句：

"Heretofore, doctors have tried low fat diets to reduce the cholesterol in the blood."
"迄今,医生一直试用低脂肪饮食来降低血液中的胆固醇。"

A woman referred to hitherto as Mrs X
迄今称之为X夫人的女子

Up to now, we have restricted ourselves to one-dimensional, one-particle systems.
迄今，我们限于一维一粒子体系。

The missing parts of the inscribed bamboo slips have not yet been discovered
迄今仍未发现竹简残缺的部分。

Up to now we have restricted ourselves to one-dimensional, one-particle systems
迄今，我们限于一维一粒子体系。

but they have not yet agreed on the answers.
但他们迄今尚未就问题的答案取得一致意见。

There is lingering sensitivity over the scandal.
丑闻留下的敏感影响迄今仍挥之不去。

The weather,which had hitherto been sunny and mild,suddenly turned cold.
迄今一直晴朗温暖的天气突然变冷了

Is there a certain cure for cancer yet?
癌症迄今有无有效的治疗方法

Specific guidelines for manifold design have not as yet been elucidated
迄今还没有成熟的有关集流腔设计的方法。

date是什么意思：
n. 日期；年代；约会；约会对象
v. 鉴定…的年代；注明日期；和…约会

Have you fixed on the date?
日期选定了吗?

The From date for the period must be earlier than the To date.
时间段的起始时间不能晚于结束时间。

Date of filling: the actual date of filling the return.
填表日期:填写办理纳税申报表的实际日期。

Can you cancel a date with decorum?
你能够有礼貌地取消约会吗?

I'll have a date tonight.
今晚我有个约会。

until是什么意思：
conj. 在…以前，直到…时
prep. 在…以前，到…为止

The class will not be over until seventeen.
这堂课要到下午五点才能结束。

to wait until; to remain
留待

Fry until the fish flakes.
把鱼煎成薄片。

Cook the lentils until they are mushy.
把扁豆烧到呈烂糊状为止。

Whip the cream until thick.
搅打奶油直到它变黏稠。