[例]  a competitive edge

effective  (adj.) able to produce the right results有效的，给人深刻印象的

[例]  The new pricelist will become effective from January. ；an effective resume

[同义词]  efficient, effectual, efficacious

efficiency  (n.) ability to do the right thing效率

[例]  This machine has a good efficiency.

efficient  (adj.) able to produce the right results quickly效率高的

[例]  The new type of machine is efficient to produce products.

[同义词]  effective, effectual, efficacious

(be) eligible for qualified or entitled to be chosen有资格的

[例]  They are eligible for the grant from the government.

embezzle(v) to take (money, for example) for one’s own use in violation of a trust 挪用公款

[例]  The GM is charged with embezzling funds from the company’s account.