| 单词 | 不能保证 |
| 释义 | 〔turf〕"These guys can't . . . make sure nobody gets turfed"(Scott Turow)“这些人不能保证没人被杀”(斯科特·图罗)〔uncertainty〕 Uncertainty, the least forceful, merely denotes a lack of assurance or conviction: Uncertainty 含义最弱，只表示不能保证或确信： 〔impracticable〕Impracticable applies to a course of action that is impossible to carry out or put into practice;impractical, though it can be used in this way, also can be weaker in sense,suggesting that the course of action would yield an insufficient return or would have little practical value.A plan for a new baseball stadium might be rejected asimpracticable if the site was too marshy to permit safe construction; but if the objection was merely that the site was too remote for patrons to attend games easily,the plan would better be described asimpractical. See Usage Note at practicable Impracticable 用于不可能实行或行不通的动作过程；impractical 虽然也能这样用， 但也有较弱意思的用法，指动作过程能产生不足的回报或者几乎没有实际的价值。如果建筑地点过于湿软而不能保证稳固的建筑，那么修建棒球体育场的计划就可能因其impracticable （不可行）而遭到反对； 但是如果反对的理由仅仅是场址太偏远而使得爱好者们不能轻易到场观看比赛的话，这个计划还是应该被看成是impractical（不切实际的） 参见 practicable |
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