1·The designers are often insensitive to the operational complexities of their machines.
设计者往往对机器的操作复杂性不敏感。
2·In all the languages existing in the world today, there are complexities that must have been developed for years.
在当今世界上存在的所有语言中，肯定有已经发展多年的复杂性。
3·Even when presented with examples of genuine contrition, children still need help to become aware of the complexities of saying sorry.
即使孩子们看到了真诚悔过的例子，他们仍然需要别人来帮助他们理解道歉的复杂性。
4·But even when presented with examples of genuine contrition, children still need help to become a ware of the complexities of saying sorry.
但是，即使孩子们看到了真诚悔过的案例，他们仍然需要帮助来理解道歉的复杂性。
5·Imagine how intimidating it can be for prospective students unfamiliar with the complexities of higher education to navigate this kind of information and then identify which schools are the best fit.
想象一下，对于不熟悉高等教育复杂性的预备学生来说，浏览这类信息并确定哪些学校是最合适的，是多么可怕的一件事。