邊本英文字典好？

Oxford dictionary. (The one with A to P in one book, then P to Z in another book).

This one has the most words.

For university level, try Oxford Advance Learner Dictionary or Collins Cobuild Dictionary.
Sorry can't write Chinese in my computer.

Oxford Dictionary is the best dictionary- according to my librarian at my university in England.

價錢$300-500

(英英.英漢雙解)

$200~$400