查询词典 be poor at

Though Ariana had been in poor health for a long time, the blow, coming so soon after the loss of their mother, had a profound effect on both of her brothers.

尽管阿瑞娜一直以来身体都不大好，这突然的打击，在她的母亲离开之后不久的确给她两个哥哥带来了深重的影响。

However, for a long time agricultural natural resources have been unreasonably used and excessively exploited so that PYLR has frequent disasters of flood and aridness and people there have a poor life .

但是长期以来由于农业自然资源的不合理利用和过度开发，致使该区域生态恶化，灾害频繁，人民生活困苦。

For an aristocrat, he was relatively poor.

以贵族来看，他的家境并不好。

Born of a poor but aristocratic family in the state of Lu, he was orphaned at an early age.

出生在日本一个穷国，但贵族家庭，在国家的卢，他成为孤儿，在较早年龄。

London has a whole collection, not in the aristocratic quarters, but in the poor and popular areas.

伦敦就有一大批，不是在贵族区，而是在穷人和平民街区。

Please return this book; I find that though many of my friends are poor arithmetician, they are nearly all good books keepers .

请还这本书吧；我发觉许多朋友虽然是蹩脚的数学家，可也几乎全是高明的"簿记员"哩。

Diego Armando Maradona was born on October 30th 1960 at 7.00 o'clock in the morning in the poor district of Villa Fiorito, in the outskirts of Buenos Aires.

他九岁那年开始在塞波里塔斯的阿根廷青年队学踢足球。由于他非凡的球技，获得了"金童"的绰号。

Boasting about size may be poor form and the sign of an arriviste .

吹嘘规模或许并非得体的行为，也是暴发户的象征。

Objectively, the results were excellent after 11 arthrodesis (73%), good or fair after three (20%), and poor after one (7%). There was no nonunion.

客观评估，有11只脚（73 %）是优，3只脚（20 %）是良或普通，1只脚（7 %）是差，并没有不黏合的病例。

Uncle Joe is as hard as nails;although he is a millionaire,he doesn't help his poor relatives.

乔叔叔是个铁公鸡，他虽然是个百万富翁，可他从来不帮助他的穷亲戚。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。