jealous of: 嫉妒
hang out: 居住于（某地）；常去（某处）
be aware of: 意识到
worry about: 担心

语意表达：hang out 居住于（某地）；常去（某处）
句型操练：I often used to hang out in supermarkets...
我过去经常在超市里逛个没完。
We can just hang out and have a good time.
我们可以只是闲逛一下，开开心。
句型出处：My mother-in-law would never want to hang out with me all day.
我婆婆从来不愿意和我呆一整天。

语意表达：abstinence: 节制
戒绝；节制；禁欲Abstinence is the practice of abstaining from something such as alcoholic drink or sex, often for health or religious reasons.
句型操练：When abstinence is the only choice, an ascetic frame of mind comes easy.
当节制成为唯一的选择时，苦行者的念头就来得很容易。
Many teenagers just snort at 'abstinence only' messages.
很多青少年对于教导他们“必须节欲”的说辞都嗤之以鼻。
句型出处：Oh no, I don’t worry about John. Both he and Danielle are in the abstinence club.
哦，我一点也不担心John，他和Danielle都加入了节制俱乐部。