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- All types of insomnia can lead to daytime drowsiness, poor concentration, and the inability to feel refreshed and rested in the morning. 各种类型的失眠都会使人白天感到困倦，注意力难以集中，早上醒来感到精神萎靡不振，休息不好。
- The principal symptoms of PTSD are hypervigilance, an exaggerated startle response, flash backs, nightmares, poor concentration, impaired memory, sleep disturbance and joint pains. PTSD（创伤后压力紊乱）主要症状是过度警惕（或：警觉）--夸张、惊恐反应、急速记忆闪现、噩梦、注意力差、记忆力减退、睡眠干扰、关节疼痛。
- As a work of art it is very poor. 作为艺术品这是十分拙劣的。
- The poor chap gets terrifically het up. 这个可怜的人气得要命。
- Mr.Black bowed out of politics due to poor health. 布莱克先生由于健康不佳而退出政治生涯。
- The poor old man shuffled off in his worn shoes. 这位可怜的老人穿希破烂不堪的鞋子一步一拖地走。
- Poor Lionel went to pieces after his wife died. 可怜的莱昂内尔在妻子死后垮了下来。
- The poor old man has come down to the bedrock. 那可怜的老人只剩下最后一块钱了。
- His latest effort is a poor excuse for a novel. 他最近的作品只是一部劣质的小说。
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- I thought his jokes were in very poor taste. 我认为他讲的笑话太粗俗了。
- His concern for the poor is only a pose. 他对穷人的关心只不过是做做样子罢了。
- Poor girl, I feel for you, toothache is painful. 可怜的姑娘，我都替你难受，牙痛真够呛。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- The poor old man died of starvation. 那个可怜的老人被饿死了。
- There is a concentration of people in big cities. 大城市人口集中。
- They would stop the rich from robbing the poor. 他们要制止富人掠夺穷人。
- He bobbed the poor old woman out of her savings. 他骗走了那位可怜老妇人的积蓄。
- He looks down on us by reason that we are poor. 因为我们穷，他瞧不起我们。
- He seized every chance to break out of the Nazi concentration camp. 他抓住一切机会从纳粹集中营跑出来。
