您要查找的是不是：
- His area of concentration is nuclear physics. 他的专门研究范围是原子物理学。
- The drug affects one's power(s) of concentration. 这种药影响人精神不能集中。
- There is a concentration of people in big cities. 大城市人口集中。
- donor concentration 施主浓度
- 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。
- A state of mental concentration. 专心致志，全神贯注全神贯注的状态
- Exceptionally great concentration, power, or force. 特别强烈的程度，力量或动力
- Nitroform is such a strong proton donor. 三硝基甲烷是一个极强的质子给予体。
- The problem is finding a compatible donor. 问题是要找到一个相匹配的骨髓捐赠者。
- The POWs burst out from(of) that Nazi concentration camp one night. 一天夜里战俘们冲出了那个纳粹集中营。
- But William has no curiosity about his donor. 但是威廉对那个捐精者毫无兴趣。
- excess donor concentration 过剩施主浓度
- The donor prefers to remain anonymous. 捐赠者希望不披露姓名。
- The donor's identity is a close secret. 捐赠人的身分是一个严加保守的秘密。
- I wish to be an anonymous donor. 不希望公布姓名。
- The donor wants to be listed as John Doe. 该捐献者希望匿名
- Would you volunteer to become blood donor? 如果让你义务献血你能做到吗?
- Stress and tiredness often result in a lack of concentration. 紧张和疲劳常使人精神不集中。
- The school was named after the donor. 这所学校是以那位捐助者的名字命名的。
- Concentration is essential if you want to do a good job. 如果你想把事情做好,专心是必要的。
