(1) trouble
have trouble doing sth 做某事有困难
(2) improve 提高,改善
(3) work 起作用,有效
(4) close 关闭
close your eyes 闭眼
(5) nights 晚上
(6) by 通过,用
by that way 通过那种方法
(1) trouble
have trouble doing sth 做某事有困难
(2) improve 提高,改善
(3) work 起作用,有效
(4) close 关闭
close your eyes 闭眼
(5) nights 晚上
(6) by 通过,用
by that way 通过那种方法