It is clear to all of us that two plus two is four.
二加二等于四对我们大家都很清楚。
That two plus two is four is quite clear to all of us .
我们大家都很清楚，二加二等于四。
HEARD the joke about a businessman who asks his accountant what two plus two is?
曾有个笑话，商人问会计2加2等于几？
So here we have two phases, the gas phase and the water phase, plus two.
这里我们有两个相，气相和液相，再加二。
Then F is one minus one plus two, is equal to two.
那么F等于1减去1再加上2。
One plus two is three. Six minus four is two.
一加二等于三。六减四等于二。
One plus two is three. Six minus four is two.
一加二等于三。六减四等于二。
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