line in the sand

• 1. 底线: bottom line | goal line
• 2. 守底线: do not cross the line
• 3. 兜底线: to help those most in need

更多释义

• 1.她说$95000是她的底线。
  She says $95,000 is her bottom line.
  dict.yoduao.com
• 2.底线是，我们今天必须作出决定。
  The bottom line is that we have to make a decision today.
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• 3.马第尼斯发球的时候，经常踩在底线上。
  Martinez, when she served, usually stayed on the baseline.
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