稀薄1. lessen the density or solidity of
2. make MORE subtle or refined
同義詞：sublimate, subtilize
3. weaken the consistency of (a chemical substance)
同義詞：attenuate
1. lessen the density or solidity of
2. make MORE subtle or refined
同義詞：sublimate, subtilize
3. weaken the consistency of (a chemical substance)
同義詞：attenuate
