一时间
yī​shí​jiān

all of a sudden

yī​shí​jiān all of a sudden
  1. 一 yī adverbnumeral
    [suddenness]
    Used before a verb to indicate that an action or situation occurs suddenly or unexpectedly.
  2. 时间 時間 shí​jiān noun
    point in time
    a specific moment or hour; the time when something happens

yī​shí​jiān for a short time
  1. 一 yī adverbnumeral
    [suddenness]
    Used before a verb to indicate that an action or situation occurs suddenly or unexpectedly.
  2. 时间 時間 shí​jiān
    for the time being
    temporarily; for a short while; currently