a piece of charcoal的用法和樣例：
例句
- If you look at a water filter, you can usually detect small chunks of charcoal inside of them.
如果你看凈水器一眼，你通常會(huì )發(fā)現它們的內部通常會(huì )有一塊木炭。 - The smell of roasted chillis filled the air as the chef aroused the huge chunks of charcoal around in the fire.
空氣中彌漫著(zhù)烤辣椒的味道，廚師正忙著(zhù)將火里燒著(zhù)的大塊木炭鋪開(kāi)。
