1. 彩旗給這次盛會增添了歡樂的氣氛。
   The colourful flags added to the gaiety of the occasion.
2. 我心里充滿了青春的歡樂。
   I'm full of the joys of spring.
3. 他沉浸在巨大的歡樂之中。
   He is in immeasurable joy.
4. 人生有許多歡樂和悲傷。
   Life has many joys and sorrows.
5. 童年時的相冊經(jīng)常讓我想起兒時的歡樂。　
   My album of boyhood photographs often reminds me of the past happiness.
6. 我們都沉浸在春節(jié)的歡樂之中。
   We all immersed in the gaiety of the Spring Festival.
7. 彩旗增加了節(jié)日的歡樂。
   Color flags added to the gaiety of the festival.
8. 孩子的誕生給他們帶來了巨大的歡樂。
   The baby's nativity brought them great pleasure.

樂的英語翻譯：