Some lunatic in a delivery truck nearly hit our shuttle bus outside the airport.

機場外有個開貨車的冒失鬼差點撞上我們的接駁車。

The warehouse manager warned that only a lunatic would operate the forklift without training.

倉庫經理警告說，只有莽漢才會未經訓練就操作堆高機。

Our CFO called the trader a lunatic for betting the entire fund on one stock.

我們的財務長說那名交易員是個冒失鬼，竟把整筆基金押在一檔股票上。