overshadow：
动词，
(1)使逊色，A overshadow B，A使B黯然失色。A is overshadowed by B,A的光芒被B遮蔽，A没有B强
overshadow表示强弱时，前后的东西要求性质相同，人与人比，人的成就与成就比，如：
He was overshadowed by his sister.
His success was overshadowed by her wife's.
(2)overshadow还有蒙上阴影及撒下遮蔽的意思，此时不要求前后名词性质相同，如：
News of the accident overshadowed the events. 出事的消息给活动蒙上了阴影。
The garden is overshadowed by tall trees. 花园中大树浓荫密布。
定语分为前置定语和后置定语，通常情况下单词作定语时前置，短语和句子作定语时后置。
如：He gave me a basket full of eggs.
English is a language easy to learn but difficult to master.
The boys hardest to teach are all in his class.
一些情况下单词作定语也可以后置，
如：He is a person dependable. ；The college mentioned.；something beautiful；
因为经营一个几乎全满的商场的成本和经营一个比较空的商场成本一样。所以为了赚取利润必须签新的租客进来。问weaken
choice a, 商场的运营成本可以通过整合现有租客的方式来降低。correct，说明增加利润不止签新租客这一个办法
choice e, 没有一个现有的租客在可见的未来需要额外的楼层空间。strengthen the conclusion
由于吸烟造成许多健康问题政府决定限制香烟，然而从香烟中获得的利润占到财政收入的10%，所以政府没办法执行禁烟令。问weaken
choice a,所有的医疗都是政府资助的。correct，说明政府财政从香烟中减少的收入可以从医疗费用节省下来。因此可以afford to curtail the tabacoo
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overshadow：动词，
(1)使逊色，A overshadow B，A使B黯然失色。A is overshadowed by B,A的光芒被B遮蔽，A没有B强
overshadow表示强弱时，前后的东西要求性质相同，人与人比，人的成就与成就比，如：
He was overshadowed by his sister.
His success was overshadowed by her wife's.
(2)overshadow还有蒙上阴影及撒下遮蔽的意思，此时不要求前后名词性质相同，如：
News of the accident overshadowed the events. 出事的消息给活动蒙上了阴影。
The garden is overshadowed by tall trees. 花园中大树浓荫密布。