Compounds:
phí sức
Lernwortschatz:
VNEN
phí sức
to waste energy
[ phí ] : to waste, squander; expenses
[ sức ] : force, strength, might, power
吃力
phí sức; tốn sức; trầy trật; vất vả; hao sức; khó nhọc; khó khăn