Œ`—eŽŒƒ‚ƒoƒCƒ‹ƒQ[ƒ€
Žc”O
difficult, hard =
1.
•Ö—˜
‚ׂñ‚è
2.
‚‚¢
‚½‚©‚¢
3.
ˆÃ‚¢
‚‚ç‚¢
4.
“‚¢
‚Þ‚¸‚©‚µ‚¢
ƒŒƒxƒ‹4.
•ÏX
SDAL“‡‰pŒêŠwZ