「白白」

(pos:副詞)
<explanation>
yue:做咗都無用；徒勞無功噉
eng:in vain; for nothing
<eg>
yue:政府白白浪費咗五千萬顧問費。 (zing3 fu2 baak6 baak6 long6 fai3 zo2 ng5 cin1 maan6 gu3 man6 fai3.)
eng:The government has wasted a consultant's fee of $50 million for nothing.