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Hello, Dr. Jill! What were you thinking about today?
你好，吉尔博士！你今天在想什么？
I watched a science documentary yesterday.
我昨天看了一部科学纪录片。
That sounds boring--not exciting, like grammar.
这听起来很无聊——不令人兴奋，就像语法一样。
In any case, the documentary got me thinking about how certain scientific ideas relate to grammar.
无论如何，这部纪录片让我思考某些科学观点与语法之间的关系。
Really? How so?
真的？为什么这么说？
Think of ideas that hold true: when water reaches a certain temperature, it freezes.
想想那些正确的观点：当水达到一定温度时，它会结冰。
If you drop an object, it falls to the ground.
如果你把一个物体扔下去，它会掉到地上。
Are you talking about grammar rules?
你是在谈论语法规则吗？
No, I was thinking about conditional statements--statements that suggest when X happens, Y happens.
不，我在想条件句——即表明当X发生时，Y发生的语句。
Right! And you used the present tense for both parts of the sentence--the part that begins with if or when--and the part that shows the result--the main clause.
没错！句子的两个部分——以if或when开头的部分以及表示结果的部分（主句）——都使用了现在时。
When water reaches a certain temperature, it freezes.
当水达到一定温度时，它会结冰。
Yes. When both parts use the present tense, we sometimes call it the zero conditional.
是的。当两个部分都使用现在时态时，我们有时称之为零条件句。
That's a useful structure for talking about general truths--like the laws that govern our natural world.
这是一个用于讨论普遍真理的有用结构——比如制约自然界的法则。
But these conditionals have all kinds of uses.
但是这些条件句有各种各样的用法。
Consider this statement: When one of my llamas escapes from my farm, I call Bill, the llama catcher.
想一想这句话：当我的一只美洲驼从我的养殖场逃跑时，我打电话给捕捉美洲驼的比尔。
I forgot about your llama farm!
我忘了你的美洲驼养殖场！
You have all kinds of unusual investments.
你有各种各样不同寻常的投资。
Here's another one: If John invests in a company, it collapses.
还有一句话：如果约翰投资了一家公司，它就会倒闭。
That's not fair! It's true that I've made some bad cryptocurrency investments.
那是不公平的！我确实做过一些糟糕的加密货币投资。
Grammar coins? Seriously?
语法币？当真？
And that's Everyday Grammar.
以上就是今天的《每日语法》。
