a given period
一定时期
热门单词
- absolute par of exchange
- absolute sequence
- abyssal cone
- accent plant
- access board
- accessible state
- accessory element
- acetaldehyde semicarbazone
- acetylurea
- acid-fast
- acidation
- acidifying diuretic
- acidness
- acoustic homing device
- acoustic spectrum
- acousticogyral illusion
- actinic absorption
- actinic green
- actinism
- activator RNA
- active business
