[xiā]
[動]
（喪失視覺； 失明） become [go; come] blind
He is blind of [in] one eye.
他瞎了一只眼。
He is blind in the right eye.
他右眼瞎了。
[副]
（沒有根據地； 沒有效果地） blindly; aimlessly; groundlessly; foolishly; to no purpose
worry for nothing
瞎操心
make a vain effort
瞎費勁
go it blind
瞎干
spend money foolishly
瞎花錢
speak groundlessly
瞎講
keep busy to no purpose; work hard for nothing
瞎忙活
[形]
（喪失視覺的） blind
a blind person riding a blind horse
盲人騎瞎馬
[方] （亂） (of thread, etc.) become tangled