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- On one hand, many C,N-containing neutral species such as C2N2, CH3CN, HC3N, CCN, etc. can effectively produce the C2N+ ion upon electron impact and radiation. 一方面，很多含有C,N原子的中性分子如C2N2、CH3CN、HC3N、CCN等经电子撞击电离或辐射后能很有效的电离出C2N+离子；
- He has a rather neutral character. 他品性平平。
- That country remained neutral in the war. 那个国家在那场战争中保持中立。
- Put the gear lever in the neutral position. 把变速杆推到空挡的位置。
- Do wolves belong to the canine species? 狼是犬科动物吗？
- He pushed the handle into neutral. 他将手柄扳到空挡。
- The water was of a pale, neutral color. 这水是一片淡灰色。
- We should do our best to save endangered species. 我们应该竭尽全力挽救濒于灭绝的生物。
- He remained neutral during the debate. 他在辩论中保持中立。
- When you start the car, make sure it is in neutral. 确定在空档才发动车子。
- This rare bird has become an endangered species. 这种珍禽已成为濒临灭绝的物种。
- I waited, but her eyes were neutral. 我等着她的反应，但她的眼睛没有露出情感有什么变化。
- He was wearing a strange species of hat. 他戴着一种奇怪的帽子。
- Neutral state in the area have tried to bring an end to the war. 该地区的中立国为结束战争作出了努力。
- There are many species of chrysanthemum. 菊花品种很多。
- Today the survival of our species is threatened. 今天人类的生存受到了威胁。
- The giant panda has become an endangered species. 大熊猫已成了一种濒临灭绝的动物。
- Unlike most other bats, this species is diurnal. 这种蝙蝠与大多数蝙蝠不同，是在日间活动的。
- A neutral tie can be worn with a shirt of any colour. 暗灰色的领带配什麽颜色的衬衣都行。
- Cut back the covers of the neutral and live wires about one inch. 将带电和不带电的电线头上的包皮割去约一英寸。
