[xǔ duō]
many; much; a great deal of; numerous; plenty of; a great many of; many a; a large amount [quantity] of; lots of; a lot of
an awful lot of trouble
许多麻烦
many people
许多人
have accumulated much experience
积累了许多经验
Many a student fails to pass on the examination.
许多学生考试不及格。