1.relax 意義為：vt.& vi.(使)輕松；(使)松弛; 放寬,是一個(gè)動詞,一般用做謂語.例如：
Relax when you dance.
跳舞時(shí)要放松.（祈使句）
His index finger tightened on the trigger but then relaxed again.
他的食指扣住扳機(jī),然后又松開了.
2.relaxing 意義為：adj.令人放松的; 輕松的,形容詞,做表語后者定語.
例如：
Actually,I think fishing is more relaxing than camping.
實(shí)際上,我想釣魚比野營更放松.
This is a great place for a relaxing holiday.
這里是休假放松的好地方.
3.relaxed 意義為：adj.放松的；松懈的,一般做表語
也做relax的過去式和完成式
例如：
a state of being relaxed and feeling no pain
放松和沒有痛苦的狀態(tài)
But being open isn't the same thing as being relaxed.
但是開放并不等同于放松.
區(qū)別：主要是后兩者,relaxing表示的多是名詞的定語,修飾物體的比較多.
而relaxed,多做表語或者修飾人的狀態(tài),feel relaxed.
這和exhausting 和exhausted的區(qū)別是一樣的.
^^歡迎采納