a.

1. 妒忌的[（+of）]
   He was jealous of his friend's reputation.

   他妒忌朋友的声誉。

   Why is he so jealous?

   他为何这么会妒忌？

2. 吃醋的
   If other men spoke to her intimately he was immediately jealous.

   一见到别的男人跟她亲热地交谈，他便会醋劲大发。

3. 小心守护的，惟恐失去的[（+of）]
   We are jealous of our hard-won freedom.

   我们珍惜得来不易的自由。

adj.

1. envious of someone else's possessions, achievements, or advantages.
   ▸suspicious or resentful of a perceived sexual rival.
2. fiercely protective or vigilant of one's rights or possessions.
3. (of God) demanding faithfulness and exclusive worship.