[scode type="green"mull
v.仔细考虑;反复思考[/scode]
音标：
/mʌl/
英英释义：
If you mull something, you think about it for a long time before deciding what to do.
例句：
①I have not decided yet,I am mulling it over in my mind.
我还没决定,一直在仔细考虑。
②I'm going to spend the weekend mulling over my options.
我这个周末要来琢磨一下我的选择。
③As it happens, however, they are currently mulling over just this sort of incident.
然而，当这种事情发生的时候，他们肯定是在思考这类事件。
拓展：
从以上的三个例句可以看出，“mull”既可以做及物也可以做不及物动词，做不及物动词时它通常与“over ”搭配。
我想到一个和它意思很近的熟词生义：deliberate
作为动词，可以表示“（尤指作出重大决定前）慎重考虑，仔细思考 ”，英文释义是：If you deliberate, you think about something carefully, especially before making a very important decision.
例如：
She deliberated over the decision for a long time before she made up her mind.
她慎重考虑了好久才下定决心作出这一决定。
[scode type="green"]set back[/scode]
英英释义：
①If something sets you back or sets back a project or scheme, it causes a delay.【使推迟;使延误;耽误】
② If something sets you back a certain amount of money, it costs you that much money.【使花费;使破费】
例句：
①It has set us back in so many respects that I'm not sure how long it will take for us to catch up.
这已经在这么多方面给我们造成了延误,我都无法确定我们要花多长时间才能赶上。
②In 1981 dinner for two in New York would set you back £5.
1981 年的时候,在纽约两个人吃一顿饭要花费 5 英镑。
拓展：
“set back”的这两个意思，第二个释义可能很少有同学知道，不过这个意思在外刊中也挺常见的，比如外媒一篇关于疫情和犬类动物的文章出现了这个表达：
看到这个短语，我想到之前在一词多义：snatch补充过的几种关于“付费”的表达，这里再重温一下：
[post cid="2354" cover=""/]
①shell out （for）为…花费一大笔钱；付钱
【If you shell out for something, you spend a lot of money on it.】
例如：
You won't have to shell out a fortune for it.
你不必为它花一大笔钱。
②run to支付得起;有钱购买
【If you cannot run to a particular item, you cannot afford to buy it or pay for it.】
例如：
If you can't run to champagne, buy sparkling wine.
如果买不起香槟酒，就买汽酒好了。
③spring for 付钱，为……买单
【to pay for someone else’s share of something】
例如：
Thank god. You made me spring for that surveillance camera. I wanted to spend money on a pinball machine.
感谢上帝。你让我装了监视器。我原先打算用这钱购置一台弹球机的。
④stump up for (常指不情愿地)付钱，掏腰包
【If you stump up a sum of money, you pay it, often unwillingly.】
例如：
Customers do not have to stump up any cash for at least four weeks.
顾客们至少四周内都不必付钱。
