| existing in fact; not theoretical; real; "a decline in the effective demand"; "confused increased equipment and expenditure with the quantity of effective work done"
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| able to accomplish a purpose; functioning effectively; "people who will do nothing unless they get something out of it for themselves are often highly effective persons..."-G.B.Shaw; "effective personnel"; "an efficient secretary"; "the efficient cause of the revolution"
同义词：efficient,
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| exerting force or influence; "the law is effective immediately"; "a warranty good for two years"; "the law is already in effect (or in force)"
同义词：good, in effect, in force,
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| works well as a means or remedy; "an effective reprimand"; "a lotion that is effective in cases of prickly heat"
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| ready for service; "the fort was held by about 100 effective soldiers"
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| 1. | Bank communications become more effective .
银行的宣传变得效果更强。
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| 2. | They thought their acting was so effective .
他们自认为演技十分感人。
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| 3. | The mudstones provide an effective seal .
此泥岩提供了有效的封闭。
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| 4. | Amines and diamines are particularly effective .
胺和二胺是特别有效的。
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| 5. | We need an effective opposition .
我们需要一个能起作用的反对党。
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| 6. | Social control was generally effective .
社会制约一般是有效的。
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| 7. | Surface bombardments had nowhere been effective .
海面舰只炮击也毫无建树。
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| 8. | The most effective defense is offence .
最有效之防御乃为攻击。
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| 9. | This medicine is effective if used within three years .
这种药三年以内有效。
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| 10. | Oxytetracycline is effective against b anthracis .
土霉素对炭疽杆菌是有效的。
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