Worse, Afghan battalions are exhausted. They do not rotate out of the front line: soldiers fight without a break for the three years they are enlisted.
更糟的是，阿军已精疲力竭，他们在前线得不到轮换：其参军后已连续不断地战斗了三年。
If we want to compute the line integral along this guy then we have to break it into a sum of three terms.
如果要计算沿这条曲线的线积分，我们不得不把它分解成3部分。
Belts of parklands line three sides of the area and four large open squares of lawns and trees break the regularity of the city buildings.
带状绿地从三面环绕，区内的四块空地上有草坪也有树木，打破了市内建筑物的单调格局。
Belts of parklands line three sides of the area and four large open squares of lawns and trees break the regularity of the city buildings.
带状绿地从三面环绕，区内的四块空地上有草坪也有树木，打破了市内建筑物的单调格局。
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