Correct
掉以轻心
/ diào yǐ qīng xīn /
Strokes
Definition
treat sth lightly/to lower one's guard
Example
Definition
let down/lower one's guard; be off one's guard; relax one's vigilance; take sth lightly; rest on one's oars
1
Duì
对
jiāotōng
交通
guīzé
规则
bùkě
不可
diàoyǐqīngxīn
掉以轻心
。
We must not ignore traffic regulations.
2
Hūnyīn
婚姻
dàshì
大事
bùkě
不可
diàoyǐqīngxīn
掉以轻心
。
Marriage is not something to be undertaken lightly.