我们必须把理论与实践相结合是个重要的原则。
It is an essential principle that we must combine theory with practice.
我们必须把理论与实践相结合，这是一个重要的原则。
That we must combine theory with practice is an important principle.
必须理论与实践相结合以达到教学目标。
The teaching goal is reached by the method of combining theory with practice.
我们必须把理论与实践相结合是个重要的原则。
It is an important rule that we must combine theory with practice.
我们必须把理论与实践相结合是个重要的原则。
我们必须把理论与实践相结合是个重要的原则。
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