problem

problem, question, issue, matter

puzzle, mystery, riddle, problem

名词 problem:

1. a state of difficulty that needs to be resolved
   同义词：job
2. a source of difficulty
   同义词：trouble
3. a question raised for consideration or solution

1. The problem is when to get the money we need.
   问题是什么时候能得到我们所需要的钱。
2. What's your problem?
   你怎么回事啊？
3. That's your problem.
   那是你的问题。
4. That's not a problem.
   那没问题。
5. But, in contrast, it is only in modern times that Galileo has become a problem child for historians of science.
   但是相比之下，对于科学史家来说，伽利略只是在现代才变成了一个成问题的孩子了。
6. No problem.
   没问题。
7. The students are working on a mathematical problem.
   学生们正在解一道数学习题。

prob.lem

n.Abbr. prob.（名词）缩写 prob.
A question to be considered, solved, or answered:
问题：应该考虑、解决或回答的问题：
例句：
math problems; the problem of how to hem a skirt evenly.
数学问题；关于如何给裙子镶平整的边的问题

A situation, matter, or person that presents perplexity or difficulty:
疑难问题：使人迷惑或感到困难的形势、事情或人物：
例句：
urban problems such as traffic congestion and smog; the philosophical problem of evil.See Usage Note at dilemma
诸如交通拥挤和烟雾的城市疑难问题；关于罪恶的哲学难题参见 dilemma

adj.（形容词）
Difficult to deal with or control:
难对付的：难以处理或控制的：
例句：
a problem child; problem customers.
难以管理的孩子；难对付的顾客

Dealing with a moral or social problem:
社会问题的：处理道德或社会问题的：
例句：
a problem play.
一部关于社会问题的剧本

来源：
Middle English probleme
中古英语 probleme
from Old French
源自 古法语
from Latin problôma problômat-
源自 拉丁语 problôma problômat-
from Greek
源自 希腊语
from proballein [to throw before, put forward]
源自 proballein [前置，放在前面]
pro- [before] * see pro- 2
pro- [在…之前] *参见 pro-2
ballein blô- [to throw] * see g wel…-
ballein blô- [扔，投] *参见 g wel…-