解析就是Ruby的阿基里斯的脚跟，而且对我们来说毫无意义。
Parsing is the Achilles' heel of Ruby implementations and for us it is a non-issue.
该技术的阿基里斯的脚跟似乎是它的低能量密度，或可以存储在电池每单位体积的能量量。
The Achilles' heel of the technology appears to be its low energy density, or amount of energy that can be stored inside the battery per unit volume.
然而阿基里斯的脚跟并未被冥河之水浸湿，而特洛伊战争期间，特洛伊王子巴里斯射箭击中阿基里斯的脚跟，阿基里斯因而丧命。
But Achilles' heel did not get wet, and during the Trojan war Paris, prince of Troy, shot and killed Achilles by hitting him with an arrow in the heel.
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