be effective
US /bi əˈfɛktɪv/
UK /bi əˈfɛktɪv/
短語
有效, 奏效
to produce a desired result or have a strong impact
範例:
•
For the treatment to be effective, you must follow the doctor's instructions carefully.
為了使治療有效，您必須仔細遵循醫生的指示。
•
The new marketing strategy proved to be effective in increasing sales.
新的營銷策略被證明在增加銷售方面有效。