如果你真的想要学习，把目标拆分成几个短期的内容，以小时为单位来分阶段学习。

So if you really want to learn, space out shorter, hourlong study sessions.

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该法以梁单位长度的造价为目标函数；

The objective function is the cost of beam per meter.

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该法以梁单位长度的造价为目标函数；

The objective function is the cost of beam per meter.

youdao