It is incumbent upon all of us to make an extra effort.我们所有人都必须加倍努力。He defeated the incumbent governor by a large plurality.他以压倒多数票击败了现任州长.The old man is an incumbent.那位老人是一位教区牧师....
It is incumbent upon all of us to make an extra effort.我们所有人都必须加倍努力。He defeated the incumbent governor by a large plurality.他以压倒多数票击败了现任州长.It is incumbent upon us to do so.这样做是我们义不容辞的责任。Dislodging an incumbent currency c...
昆虫生产的防御性化学物质,其种类之多不可胜数.There seems to be no limit to the variety of defensive chemicals produced by insects.防御性的刺长在这些讨人厌的生物背上.Defensive quills dot the backs of these troublesome creatures.现在大家偏好偏防御性的品种.It is now preferre...