joyous   adj. 

full of joy; very happy 非�？鞓返模�令人愉快��

She had made their childhood so joyous and carefree.

她讓他們的童年無憂無慮，充滿歡樂。

tension   n. 

a feeling of nervousness before an important or difficult event 

同根詞：tense adj.

令人緊張的  (形勢(shì)、時(shí)期等)；

(人) 緊張的；(肌肉) 緊繃的

You could feel the tension in the room as we waited for our exam results. 

你可以感受到每次公布考試成績(jī)前，教室里的緊張感。

light   adj. 

free from worry; cheerful 快活的，無憂無慮的

Dinner should be a happy, light time with your family ... 

晚餐時(shí)間應(yīng)該是你和家人之間快樂的溫情時(shí)刻。

dedicated   adj. 

You use dedicated to describe something that is made, built, or designed for one particular purpose or thing. 
用法：dedicated作形容詞還可以表示“投入的”
同根詞：dedicate vt. 投身；獻(xiàn)給；dedication n. 奉獻(xiàn)
She is dedicated to her job. 

她為她的工作奉獻(xiàn)了很多。

engage with sb/sth 

make an effort to understand and deal with sb or sth 與......建立密切關(guān)系；盡力理解

She has the ability to engage with young minds.  

她能夠很好地理解年輕人的想法。

unwind    v. 

stop worrying or thinking about problems and start to relax放松

近義表達(dá)：relax，wind down，chill out
Music helps me unwind after a busy day.  

音樂讓我在繁忙的一天充分放松。