a. 漠不关心的, 无重要性的, 中立的

[医] 中性的, 无作用的, 无亲和力的, 淡漠的

s. showing no care or concern in attitude or action

s. fairly poor to not very good

s. marked by no especial liking or dislike or preference for one thing over another

s. characterized by a lack of partiality