vt. 减少
reduce
nearby
adj. 附近的
adj. 有力的,(药等)有功效的
powerful
6. to make something smaller in size, amount, degree, importance, etc
7. not far away
8. a powerful medicine or drug has a very strong effect on your body
inject
vt. 注射
5. to use a needle to put a liquid such as a drug into a person’s body