| Whatever you call it - but the |
| 送交者: oh-my 2009月06月19日19:05:45 于 [世界军事论坛] 发送悄悄话 |
| 回 答: haha, should be learning curve 由 8mile 于 2009-06-19 18:39:53 |
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learning curves will be different depending on the stages/phases |
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