411 REFERENCE · Wikibooks
English-Hanzi/Problem
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.
A problem is something that causes difficulty.
一个 问题 是 导致 困难 的 某事物。
411 REFERENCE · Wikibooks
Reference material by Wikibooks contributors. This retains its source identity and is not 411 news reporting.