She met with a lot of knotty problems.

她碰上了棘手的问题。

The young captain is pondering over a thorny problem.

年轻的上尉正在思考个棘手的问题。

Many school boards found segregation a hot potato in the early 1960s.

在60年代初, 校部门都觉得按水平分班是个棘手的问题。

The use of animals in scientific tests raises some difficult ethical questions.

用动物做科试验引起了些棘手的道德问题。

My father opened a real can of worms when he took over the ailing company and tried to get it doing business.

当我父亲接管家处境困难的公司并试图重振业务, 实碰到了棘手的问题。

After trust and paying an issue it is the most intractably to was solved, those who remain how to just serve than going all out with traditional jeweller's.

在解决了最棘手的信任和支付问题之后，剩下的只是如何与传统珠宝店比拼服务。