通讯难: problems of housing traffic and communication
入托难: difficulties for the children to go to nurseries
Example Sentences:
1.
Many puzzles cleared up instantly . 一些难解之谜一瞬间解决了。
2.
Philosophical problems and riddles would completely disappear if this method were properly used . 如果上述方法得以恰当运用，哲学的问题及其难解之谜就会完全消失。
3.
Luoshan cliff - tomb buddha is a hard nut in the history of cultural intercourse between china and other countries 摘要乐山崖墓佛像问题是中外文化交流史上的难解之谜。
4.
British researchers have found the solution to the age - old riddle of why many women live longer than men . it ' s their pumping power 英国研究者们终于解开了长期以来困惑人类的难解之谜:为何多数女性比男性长寿.原因就是她们心脏的供血动力
5.
Dividend policies , one of the three key elements in modern financial management , are considered a puzzling riddle of the modern financial management 股利政策是现代公司理财活动的三大核心之一，也被认为是当代理财学上的一个难解之谜。
6.
Later this year , the $ 8 - billion science experiment known as the large hadron collider ( lhc ) will start uncovering clues to some of the biggest mysteries in physics 今年晚些时候，这项耗资八十亿美元、名为大型强子对撞机( lhc )的科学实验将开始陆续发现物理学史上几个最难解之谜的线索。
7.
The “ actions ” of the conscions mind , like choosing , whose existence as genuine opeartions many would deny , still give scientists nightmares , philospphers headaches , and theologians eternal joy 人的大脑具有意识“活动”的功能，比如选择的功能，虽然许多人可能都不会承认，但的确是存在的。然而这些难解之谜至今仍然使科学家感到困惑，使哲学家感到头疼，使神学家感到无限的喜悦。
