在井上
on the ball───adv.机灵；留心；有见识；勤奋
on the level───诚实的；可靠的；坦率地；老实说
on the shelf───在书架上；束之高阁；被搁置的；闲置的
on the whole───基本上，大体上；就全体而论
in the wild───在野外，野生的；在自然环境下
on the beam───[航]航向正确；正横地；必须用泵抽油的
on the beat───合拍；在巡逻中
on the dole───领取救济金
on the fly───在飞行中；忙忙碌碌
she entered the courtyard, the cock who was perchedon the well, called out: "Cock-a-doodle-doo!"───她一走进院子，蹲在井边的公鸡就叫道：“喔——喔——喔！”
The idea is a fresh twiston the well-established phenomenon of mimicry among animals.───的观点等于是对拟态伪装现象作出了全新的解读。
IMCI is an integrated approach to child health that focuseson the well-being of the whole child.───儿童疾病综合管理是一项以全世界儿童的福祉为重点的儿童健康综合措施。
gains and losses do not care about old scores, modest restraint is a virtue, contentment is often music, harmonyon the well-being.───得失恩怨不计较，谦让克制是美德，知足则常乐，和谐就幸福。
Basedon the wellestablished observation, the children will stare longer if they do not see what they expect to see.───根据可靠地观察，当他们面对他们想看的东西时，孩子们会更长时间得盯着看。
i stood againon the well- remembered terrace , and looked once more at the peaceful old country house.───我又站在那萦绕心头的阳台上了，我再一次地望望那宁静的老式乡下别墅。
As a frog sat at the bottom of a well, a little bird flew over and perchedon the well's edge.───一只青蛙坐在井里，一只小鸟飞过来，落在井边上。
Doctors have always been a hot topic of discussion on the Well blog.───医生一直是Well博客上的热门讨论话题的（文章取自Well博客）。
The effects of a tariffon the well-being of consumers and producers do not exhaust its effects on the importing nation.───关税对消费者和生产者的福利影响，并没有包括它对出口国的影响。
The porter hoisted the valise upon the well.
Externality the impact of one person's actionson the well- being of a bystander.
The effect of gravel packing in screen casing annular and perforationson the wellproductivity can be shown by gravel pack productivity ratio, which can be calculated by the additional skin factor.
The idea is a fresh twiston the well- established phenomenon of mimicry among animals.
Run the BOP and land iton the well- head.