a drop in the bucket
n.九牛一毛, 沧海一粟
热门单词
- aabomycin
- absconsio
- absorption spectrophotometer
- abyssal environment
- academic course
- academicism
- Acamar
- acanthocephalan
- accelerating fluid
- accelerator dosage
- access cylinder
- accession rate
- accessorize
- accommodate oneself to
- accounting practice
- accrued items
- acetolactate decarboxylase
- acholuria
- acinotubular gland
- acknowledger
- acoustic centre
