Teamwork played a key role in winning the relay race.
團隊合作在贏得大隊接力中扮演了關鍵角色。
Please underline the key words when you read the article.
當你閱讀這篇文章時，請把關鍵字畫底線。
Getting enough sleep is key to staying healthy.
獲得充足的睡眠是保持健康的關鍵。
Time is a key factor in this science test.
時間是這次自然考試的一個關鍵因素。