regex101: PCRE (Legacy) Substitution Workspace

\na line-feed (newline) character (ASCII 10)

Positive Lookahead(?=[^"]+?"\s*$)

Negated Character Class[^"]+?

+?matches at least one character outside the set below:

"the literal " (34₁₀ / 42₈ / 22₁₆)

\s*any whitespace character, repeated any number of times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Search reference

Regular Expression

\n(?=[^"]+?"\s*$)

New

ability,n. 能力，能耐；才能
able,adj. 能； 有能力的；能干的
about,"prep. 关于；大约
n. 大致；粗枝大叶；不拘小节的人
adj. 在附近的；四处走动的；在起作用的
adv. 大约；周围；到处"
above,"prep. 超过；在……上面；在……之上
n. 上文
adj. 上文的
adv. 在上面；在上文"
accident,n. 事故；意外； 意外事件；机遇
accurate,adj. 精确的
ache,"n. 疼痛
vi. 疼痛；渴望"
activity,n. 活动；行动；活跃
actor,n. 男演员；行动者；作用物
actress,n. 女演员
actually,adv. 实际上；事实上