Œ`—eŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
difficult, hard =
1.
“‚¢
‚Þ‚¸‚©‚µ‚¢
2.
‰É
‚ЂÜ
3.
—Á‚µ‚¢
‚·‚¸‚µ‚¢
4.
Œú‚¢
‚ ‚‚¢
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ