adv. 突然; 忽然; 猛地; 骤然
Oxford 3000 / Collins.4 / BNC.854 / COCA.955
adv.
suddenly adv. 突然,突如其来地
〔辨析〕普通用词,指迅速而又意外,强调出乎意料。
abruptly adv. 突然地,意外地
〔辨析〕通常指言语、行为比较突然,含粗鲁、莽撞、令人不快之意。
adv
Synonym: all of a suddenof a sudden
Synonym: on the spur of the moment