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重点讲解：
1. come up with 想出，提出(计划、想法等)；
He thought for a while, and finally come up with a solution.
他又想了想，终于又想出了一个办法。
2. compare with 比较；对比；
We carefully compared the first report with the second.
我们仔细比较了第一份报告和第二份报告。
3. line up 使（某一批物）排列成行；对齐；
When the images line up exactly, the projectors should be fixed in place
图像完全对齐时，投影仪的位置就应该固定下来。
4. as for 至于…；
As for anything told to me in confidence, well, my lips are sealed.
至于私底下告诉我的任何事情，我会守口如瓶的。
n. 果心，核心，要点
vt. 挖去果核
