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重点讲解：
1. be able to do sth. 可以…的，能够…的；
They'll be able to furnish you with the rest of the details.
他们将可向你提供其余的细节。
2. be filled with 布满；使遍及；
The forest was filled with the sound of running water.
森林中处处都能听到流水声。
3. go through 经历，经受；
Once hay has been cut and baled it has to go through some chemical processes.
干草割下并捆扎之后需要对其进行化学处理。
4. be made up of （由…）构成的；（由…）制成的；
Food is made up of carbohydrates, proteins and fats.
食物由碳水化合物、蛋白质和脂肪构成。
