「許勝不許敗」

(pos:語句)
<explanation>
yue:只可以#贏，唔可以#輸
eng:no defeat is allowed; must not fail
<eg>
yue:我哋咁難得先可以過五關斬六將，決賽許勝不許敗！ (ngo5 dei6 gam3 naan4 dak1 sin1 ho2 ji5 gwo3 ng5 gwaan1 zaam2 luk6 zoeng3, kyut3 coi3 heoi2 sing3 bat1 heoi2 baai6!)
eng:It's been tough for us to get over the challenges all along. We must win in the final!