如果不；不然的话

要不，不然; 若非

of note───著名的，有名的；值得注意的

or not───或不

fit note───调整注释

if only───只要；要是…多好

if poss───如果可能

to knot───打结

to note───注意

She understood his meaning, if not his words, and took his advice.───她即便没听懂他的话，也明白了他的意思，并且接受了他的建议。

This agreement, if not implemented, is a mere scrap of paper.───这个协定如不执行只不过是一纸空文.

If they arrive before I leave, well and good. If not, the responsibility will be mine.───如果他们在我离开之前到达，那自然很好。但如果不是的话，那责任就是我的了。

Professor Fish has been nothing if not professional.───菲什教授一贯表现出很高的职业水准。

Many, if not most, scientific papers are presented orally at scientific meetings.───许多科学论文，即便不是大多数，都是以口头形式在科学会议上发表的。

The government had a moral, if not a legal, duty to pay compensation.───政府即使没有法律上的义务也有道义上的义务进行赔偿。

If not a large concern, the Potomac Nursery was at least a successful one.───虽不是一个大生意，波托马克幼儿园至少是一个成功的公司。

Where should I go, if not to your house?───我不到你家里去, 到哪里去 呢 ?

you pressed for time? If not, I suggest we have lunch.───你时间紧吗？如果不紧的话，我建议我们一起吃午饭。

Technical skill is a fundamental basis for most, if not all, great art.───技巧即使不是所有伟大艺术、也是其中大多数的根本基础。

The contest has become personalised, if not bitter.───这场角逐开始针对个人了，甚至话语也变得尖刻起来。

Hollywood is nothing if not creative, especially if someone else will pick up the bills.───好莱坞是极有创造力的地方，尤其是如果有人肯埋单的话。

I'm working on my fitness and I will be ready in a couple of weeks, if not sooner.───我正在调养身体，最多两三周以后就可以了。

Vasari claimed with horror that he was, if not an atheist, then an agnostic.───瓦萨里惊恐地说他若非无神论者，就是不可知论者。

If you agree, so; if not, so.───如果你同意, 就这样; 如果你不同意, 也这样.

If not a large concern, Queensbury Nursery was at least a successful one.───即使规模不算大，昆斯伯里托儿所至少办得很成功。

Sometimes, that standard is quite difficult, if not impossible, to achieve.───有时即便有可能达到那个标准，那也是非常困难。

If not for John, Brian wouldn'thave learned the truth.───要不是因为约翰，布赖恩也不可能知道真相。

It was a warm day, if not exactly hot.