【HELP】More bitter and most bitter are the usual comparative and superlative forms, but bitterest can also be used.
• * more bitter 和 most bitter 是常用的比较级和最高级形式,但也可以用 bitterest。
1. (of arguments, disagreements, etc. 争论、分歧等) very serious and unpleasant, with a lot of anger and hatred involved