是是是。谁说它们不会呢？
是是是，她认识我！我有希望了，我有希望了！
龙卷风？是是是。
今天，全体学生中大概有60%是黑人和西班牙人，25%是亚洲人，另外15%是白人。
Today, the student body is roughly 60 percent Black and Hispanic, 25 percent Asian, and 15 percent white.
虽然科学家曾被认为是怪人、是该体制的局外人，而如今我们已经是权力集团的一部分。
While scientists were once considered cranks and outsiders to the system, we are now part of the establishment.
Ihave eaten是动词eat的现在完成时；Ihad eaten是过去完成时；Iwill have eaten是将来完成时。
'I have eaten' is the present perfect tense of the verb 'to eat', 'I had eaten' is the past perfect and 'I will have eaten' is the future perfect.
这种观点可能是正确的：它的优点是洋流是由温差驱动的，而温差本身又取决于大陆的位置。
This view may be correct: it has the advantage that the currents are driven by temperature differences that themselves depend on the position of the continents.
它通常呈现的是一种正常的皮肤颜色，要么是红色，要么是棕色，甚至是灰色，还有一些黑斑。
It's a normal skin color, the one it generally presents, is either red or brown or even grey, and it's speckled with dark spots.
这些差异有的是生物性的，有的是天生的，是进化的结果吗？
Are some of these differences biological and inborn, a result of evolution?
冰川是开放系统，雪是系统的输入，融水是系统的主要输出。
Glaciers are open systems, with snow as the system's input and meltwater as the system's main output.
我们首先寻找的是他的凉鞋，但令人失望的是，他是赤着脚。
The first thing we look for is his sandals, but, disappointingly, he's barefoot.
香蕉糖果是黄色的，草莓糖果是红色的，苹果糖果是绿色的。
The banana candy is yellow, the strawberry candy is red, and the apple candy is green.
2007年，一个国际CEO组织发现43%的 CEO是老大，33%是中间的孩子，23%是家中最小的孩子。
In 2007, an international organization of CEOs found that 43% of CEOs are first borns 33% are middle children, and 23% are last borns.
当地的人们这样形容神农架的特殊气候：“山脚下是夏天，山顶是春天，山脚下是秋天，山顶被冰雪覆盖。”
"When the bottom of the mountain is summer, the top is spring and while the foothill is autumn, the top is covered with ice," local people say of the special climate of Shennongjia.
他猜测象形文字是语音符号是正确的，它们代表的是声音而不是图像。
He suspected rightly that the hieroglyphs were phonetic symbols, that they represented its sounds rather than pictures.
我是个运动员，年轻时是，现在是，以后也一直会是。
I was an athlete when I was young. I am still an athlete now, and will always be an athlete.
关于人性的原话是这样写的：“犯错是人的行为，而宽恕是神的事情。”
The original quote about human nature went like this: "To err is human, to forgive, divine."
有些是灰色的，有些是白色的，还有一些是棕色和黑色的混合色。
Some were gray, others white, and still others a mixture of brown and black.
秘密是这样的：真正的石头是温暖的，而普通的石头是冷的。
The secret was this: The real stone would feel warm, while ordinary pebbles are cold.
她说：“我想说的是，大自然有些东西是用铅笔写的，有些东西是用钢笔写的。”
'What I like to say is that nature writes some things in pencil and some things in pen,' she says.
令人费解的是，花青素实际上是新生成的，是在树叶准备掉落的同时产生的。
What's puzzling is that anthocyanins are actually newly minted, made in the leaves at the same time as the tree is preparing to drop them.
每次我都会轻声回答：“爷爷，是我，我是雷！”即使他已经忘记了我是谁，他也永远会是我敬爱的祖父。
Each time I would answer softly, "It's me, Ray, Grandpa!" Even if he had forgotten who I was, he would always be my beloved grandfather.
一项新研究得出的结论是，如果你是一条巨蟒的话，脂肪对心脏是有好处的。
Fat does a heart good, if you're a python, a new study says.
这张照片是一个提醒，是一个被捕捉的瞬间，是一段无言的对话。
The photo is a reminder, a captured moment, an unspoken conversation.
接着是一阵狂笑，一半是嘲笑，一半是为这个绝妙的笑话而高兴。
A wild burst of laughter followed, partly of derision and partly of delight in the excellence of the joke.
如果赚钱是你的白日梦，赔钱是你的噩梦，如果贫穷是你最害怕的事，赚钱是你最虔诚的祈祷，那么你就错过了受教育的机会。
If making money is your daydream and losing money your nightmare, if poverty is your worst fear and making money your most fervent prayer, you have missed the opportunity for education.
对我来说，它就是兄弟姐妹，是姑姑阿姨，是伙伴，是食物和饮料，还是天然的浴盆。
It's brother and sister to me, and aunts, and company, and food and drink, and naturally washing.
不管天气是冷是热，是干是湿，是好是坏，它们那疲惫的机头都会以同样的节奏上下摆动。
Their wearisome heads went up and down at the same rate, in hot weather and in cold, wet weather and dry, fair weather and foul.
你好，我是马克。我是美国人。你是中国人吗？
他们说他是个捣蛋鬼，是个流浪汉，是个街头顽童——诋毁！
They say he is a mischief-maker, a tramp, a street urchin—Calumnies!
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