导读：词组能有效的帮助大家提高完型和句子的理解与写作质量，为保证大家能够灵活运用考研重点词组，社科赛斯李梅老师特配以相应的例句，帮助大家更快地获得更高的分数。
601. no doubt 无疑地
There is no doubt that the sun rises from the East everyday.
毫无疑问，太阳每天都是从东边升起的。
602. no less than 不少于...；多达
I drank no less than ten bottles of beer.
我喝了不少于十罐啤酒。
No less than fifty were wounded in the plane crash.
飞机坠毁事故中，多达五十人受伤。
603. no more than 无非；至多，同...一样不
The area they are working in is no more than thirty meters square.
他们工作的那个地方至多30平方米。
604. no wonder 难怪，并不奇怪
No wonder my brother wasn't feeling well.
难怪我兄弟感觉不舒服了。
605. nothing but 只有，只不过
I'm nothing but the tool of God.
我不算什么，只不过是上帝的工具。
606. now and then 时而，偶尔
Now and then they heard the roar of a heavy truck.
他们不时地听到大卡车的轰鸣声。
607. objection to sth 反对
My father had objection to the new policy.
我父亲反对那项新政策。
608. obstacle to 成为...的障碍
Laziness is the obstacle to be successful.
懒惰是成功的障碍。
609. occur to 被想到，被想起
Did it occur to you that she might be dead?
那你有想过她死了吗？
610.off duty 下班
You said he was off duty.
你说他已经下班了。
