black out . 使灯光熄灭（或暗下来）；实行灯火管制
The city was blacked out during the air raid．空袭期间，全城都实行了灯火管制。
During the war we had to black out all our windows．在战争期间我们不得不把所有的窗户遮暗。
The factory was blacked out due to power failure．这家工厂由于停电一片漆黑。
black out . ；cut out涂掉；删去
You had better black out that word．你最好把那个字涂掉。
In wartime，they often blacked out all news，or gave out false news．在战争期间，他们常封锁消息或者发布假新闻。
black out . lose consciousness；lose one's memory失去知觉；暂时失去记忆
After the accident he blacked out and couldn't remember what happened．事故之后，他晕倒了，记不起发生了什么事。
It had been a hard and tiring day，and she suddenly blacked out．一整天辛苦疲劳后，她突然昏倒了。
black out . 封锁或干扰广播
The enemy hoped to black out our radio transmission．敌人想干扰我们电台的广播。
blame for . ；find fault with somebody 因…责备（某人）
The driver blamed the cyclist for the accident．司机把这次事故归咎于那个骑车人。
The manager blamed the office boy for losing the key．经理责备勤务员丢了钥匙。
The accountant was blamed for the mistake．会计因有错误而受责备。
blame on . ；lay the blame on把责任推到（某人）身上
Don't blame it on him，but on me．别怪他，怪我。
He blame his failure on the teacher．他把他的失败归咎于老师。
blank out . cross out删掉；划掉
The editor blanked out several passages from the article．编辑将文章中的几个段落删掉了。
This entry is to be blanked out．这一条目该划掉。
blank out .fade；become confused ,become abstracted渐渐消失；变得糊涂或心不在焉
I did not go to sleep until the noise in the street blanked out．街上没有响声以后，我才睡着。
His memory blanks out when he gets excited．他一兴奋就什么也记不得了。
blast off . 爆炸；炸毁
The explosion blasted the roof off．爆炸把房顶炸飞了。
blast off . （火箭，导弹）发射；升空
The jet fighters blasted off from the deck of the aircraft carrier．喷气式战斗机从航空母舰的甲板上起飞。
The missile will blast off at ten a．m．local time．这枚导弹将在当地时间上午十点发射。
blast off . 对某人发脾气
When I entered the room he was blasting off．我进屋时他正在大发雷霆。
The boss blasted off at the staff for poor business．由于生意不好，老板向雇员们发火。
bless with . ；favor with赐福于；使有幸得到
May God bless you with success！愿上帝保佑你成功！
He has not been rich，but he has always been blessed with good health．他不是个富人，但却拥有健壮的身体。
blind to . unable to know对…一无所知；看不见；不知晓
Man is often blind to his own faults．人们对自己的弱点往往视而不见。
block in . enclose with blocks；surround 堵塞；包围
The space has been blocked in．这块场地被堵塞了。
The harbour was completely blocked in by heavy masses of ice．港口为大量冰块所封冻。
The car has been blocked in by all those lorries．这辆小车被那些卡车堵住了。
block in . 画略图；草拟计划
The draughtsman rapidly blocked in his idea．制图员很快把他的计划画出草图。
They have blocked in a plan for their wheat production next year．他们已为下年度的小麦生产拟订了一份计划。
block out . mark out in blocks标示街区
The area has been blocked out，and building will begin soon．这个地区的建筑图纸已经画好，不久就要施工。
block out .. stop from getting through . 阻止通过
That wall blocks out all the light．那堵墙挡住全部光线。
block out . . 画出…的草图；写出…提纲
He's blocked out an outline for his essay．他已经写好了论文提纲。
block up fill up ；close up .积满；堵塞
This pipe is blocked up；there is a piece of wool in it ．这根管子被堵塞了，有一片毛织物在里面。
The traffic is very heavy，and has begun to block up the streets．交通极为繁忙，街道开始堵塞了。
blossom out . come out in blossom开花
The fruit trees have blossomed out beautifully．这些果树花开得很美。
blossom out .develop发展；成长
He blossomed out as a first rate athlete．他锻炼成为第一流的运动员。
She has blossomed out into a lovely young woman．她已长成一个可爱的年轻女子。
blow away . 吹走；吹跑
The wind was so strong that people were nearly blown away．风刮得很大，几乎把人都卷走了。