每日一句口語:
Three grand essentials to happiness in this life are something to do, something to love, and something to hope for. 生活中的快樂三要素:有事做,有熱愛,有夢想。
【知識點講解】
essential adj.基本的; 必要的; 本質的; 精華的
例句:
Polyunsaturated oils are essential for health. Excess is harmful, however.多不飽和油對健康很重要。但是,食用過量就會有害。