a開頭的名詞

例句：

His aim was to become president.

他的目的`是當總統。

We aim to help the poorest families.

我們的目標是接濟最貧困的家庭。

Draughts help to circulate air.

通風有助於循環空氣。

Loud screams rent the air.

高聲的尖叫劃破了天空。

His hands clawed the air.

他的雙手在空中亂抓。