词汇	大厎
释义	大厎 dà dǐ大抵。
随便看	observation aeroplane observation-aiming system observation aircraft observation airplane observational observational ability observational accuracy observational adequacy Observational angle RVI observational approach of marketing research observational astronomy Observational Astrophysics observational aviation observational behavior observational bias observational capability observational catalogue observational check observational components observational construction observational content observational cosmology observational results Observational Scale observational seismology