after-filter的用法和樣例：
例句
- We usually clear the water with a filter.
我們通常用過濾器使水凈化。 - You must select at least one filter action.
您必須選擇至少一個過濾器動作。 - By replacing your air filter annually, or biannually if you live in a dusty area, you'll ensure the engine can breathe freely.
每年換一次過濾器或者在沙塵多的地方每半年更換一次能保證你的愛車引擎自由呼吸。
