created sense approved 一下子 · yīxiàzi · quickly
一下子
yīxiàzi
quickly
in a short while; in a very brief period of time
他一下子就把作业做完了。
numeral
created sense approved 一下子 · yīxiàzi · suddenly
一下子
yīxiàzi
suddenly
all at once; all of a sudden
天气一下子变冷了。
numeral