找出下列单词的正确英文释义(共10小题; 每空1分,满分10分)

captivity	A. disadvantage
artifical	B. turn around on an axis or centre
revolve	C. the state of being kept as a prisoner
reduce(to)	D. made by humans, produced rather than natural
boost	E. raise or lift by pushing up from behind or below
trap	F. support (sb.) by giving money or other help
adjust to	G. unwilling
reluctant	H. change something into a simpler form
drawback	I. change to suit new conditions
sponsor	J. catch in a trap