- 知识费用
- knowledge: n. 1.知识；学识，学问。 2.了解，理解；消息。 3 ...
- expense: n. 1.(时间、精力、金钱等的)消耗，花消，消费。 2 ...
- at the expense of: 归付费; 以……为代价；牺牲; 以……为代价；在损害……的情况下; 以为代价; 在损害…情况下，以…为牺牲
- expense: n. 1.(时间、精力、金钱等的)消耗，花消，消费。 2.(无形的)损失；牺牲。 3.〔常 pl.〕费用；(额外)开支。 4.费钱的东西。 household [domestic] expenses 家用。 sundry [miscellaneous] expenses 杂费。 running [current] expenses 经常费。 incidental expenses 临时费。 school expenses 学费。 travelling expenses 旅费。 at a great expense 以巨大费用。 at any expense无论花费多少。 at his [her, my] expense嘲弄他[她，我等] (They have a good laugh at his expense. 他们嘲笑他)。 at one's own [public] expense自[公]费 (He went abroad at his own expense. 他自费出国)。 at the expense of 以…为代价；由…出钱；牺牲… (He attained his goal at the expense of others. 他牺牲别人来达到自己的目的)。 cut down [curtail] one's expenses 节省开支。 free of expense免费。 go to expense 花钱，用钱，出钱。 meet one's expenses 足够开支。 put sb. to expense使人花钱，使某人负担用费，使破财。 regardless of expense不计钱财，不惜花费。 spare no expense不惜花费。
- the expense of: 归付费; 在损害
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