at birth 和at a birth的区别
[1]birth单词记忆法◆记忆方法一：联想方式：bir（必然）； th（天皇）他一出生必然是天皇的继承人。◆记忆方法二：联想方式：bir（必然）； th（天皇）记忆方法：他一出生必然是天皇的继承人。◆记忆方法三：birth n. 出生,出身;起源解析：blue blood出身高贵
at birth的意思是”刚生下来时”“出生时”，看下面的例句：
He weighed six jin at birth.他出生时6斤重。
To some extent, our intelligence is given us at birth.
在某种程度上，我们的智力是生而有之。
at a birth 的意思是“一胎”，例句如下：
There are three kittens at a birth. 一胎生了三只小猫。
birth相关单词意思与记忆法：
birth单词意思解释释义：
n. 出生, 起源【医】 生产, 分娩相关词组: by birth to give birth to...
birth单词记忆法：
◆记忆方法一：
联想方式：bir（必然）； th（天皇）
他一出生必然是天皇的继承人。
◆记忆方法二：
联想方式：bir（必然）； th（天皇）
记忆方法：他一出生必然是天皇的继承人。
◆记忆方法三：
birth n. 出生,出身;起源
解析：blue blood出身高贵
at相关单词意思与记忆法：
at单词意思解释释义：
prep. 在, 向, 对【计】 地址转换器, 异常传输, 自动订票【医】 砹(85号元素)相关词组: at war at regular intervals at peace to keep on at sb at midnight at the moment be at an utter loss what to do at work at school at rest
birth单词相关例句：There is no cure for birth and death save to enjoy the interval. 生和死都无法治,只有享受两者之间的间隔.
We should weep for men at their birth and not a t their death. 我们应在人降生时流泪，而不该在人死亡时哭泣。
The birth of my son was the happiest moment of my life.
宝宝出生的那刻是我这辈子最幸福的时候。
We are happy to announce the birth of our son Andrew.
很高兴地告诉大家我们生了个儿子，取名安德鲁。
We are happy to announce the birth of our son Andrew.
很高兴地告诉大家我们生了个儿子，取名安德鲁。
The ringing bells proclaimed the birth of the prince.
鸣响的钟声宣布王子诞生了。
Method:Analysis parturition 96 urgent birth in the past 7 years, and draw normal labor 100 urgent birth for control section randomly.
方法对近7年分娩的96例急产进行分析，并对随机抽取同期正常分娩100例为对照组。
Did birth order play a role in success?
排行顺序对成功有影响吗？
He falsified his birth certificate to get a passport.
为了取得护照，他伪造了出生证明。
They wanted a radio frequency identification system to be able to follow a sheep from birth to market.
他们需要一个可以跟踪绵羊从出生到市场的收音机频率确认系统。
at单词相关例句：Who undertakes many things at once, seldom does anything well. 许多事情同时干，一件事也办不成。
It is better to fight for good than to rail at the ill. 与其抱怨，不如积善。
It is better to fight for justice than to rail at the ill.——Alfreds Tennyson, Bitish writer与其责骂罪恶，不如伸张正义。英国作家 丁尼生
A clear conscience laughs at false accusations. 白日不做亏心事，夜半敲门心不惊。
Fame like a river is narrowest at its source and broadest afar off. 名誉像条河，源头最狭窄，远处最宽阔。
Fame like a river is narroest at its source and broadest afar off. 名誉象条河,源头最狭窄,愈流愈宽阔.
We can not tell the precise moment when friendship is founded, As in filling a vessel drop by drop, there is at last a drop which makes it run over ; so in a serics of kindness there is at last one which makes the heart run over.——James Boswell, British writer 我们无法讲出友谊缔造的确切时刻，就像一点一滴地倾注一个容器一样，终有一滴使容器满溢；因此，面对接二连三的好意，终有那么一次会动人心弦，情谊洋溢。英国作家 博斯韦尔,J.
Sickness is felt, but health not at all. 疾病能够感觉到，健康全然不知晓。
An oak is not felled at one stroke. 万事不能一蹴而就。
Wherever in the world a people knows desperate want, there must appear at least the spark of hope, the hope of progress--or there will surely rise at last the flames of conflict.——Dwight Eisenhower,Commander in chief of the Allied forces in the second World War 任何地方，一个民族只要知道自己迫切需要什么，那里就会出现希望的火花，出现进步的希望，换句话说，最后必定会燃起抗争的火焰。第二次世界大战中盟军最高司令 艾森豪威尔，D.
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