他七点整回到家。
The plane took off at seven sharp.
飞机在七点整起飞。
You must arrive there at seven sharp.
你七点必须准时到那。
We are to meet at the school gate at sharp seven tomorrow. After that we are going to visit the West Hill.
明早七点整，我们在校门口会面，然后我们打算去西山参观。
We are to meet at the school gate at sharp seven tomorrow. After that we are going to visit the West Hill.
明早七点整，我们在校门口会面，然后我们打算去西山参观。
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