1.be afraid to do主要指按照经验或常识不敢去做某事或没有勇气去做某事.如:The little boy was afraid to go out at night.这个小男孩晚上不敢出去.be afraid of doing主要表示担心会发生某事(是一种无意行为)...
1.be afraid to do主要指按照经验或常识不敢去做某事或没有勇气去做某事.如:The little boy was afraid to go out at night.这个小男孩晚上不敢出去.be afraid of doing主要表示担心会发生某事(是一种无意行为)...