相关单词近义词 constant 不变的, tireless 不知疲倦的, indefatigable 不知疲倦的, untiring 不知疲倦的, unfaltering 坚决的, persistent 坚持的, tenacious 抓紧的, resolute 坚决的, determined 坚定的, steadfast 坚定的, loyal 忠诚的, unwearying 不会疲倦的(不倦的)..., unfailing 永恒的临近词UN, Uncini相似词unfilled, unfiltered, unfinished, unfit, unflappable, unflattering, unflinching, unfocused, 返回 unflagging