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1·The preschool period, therefore, is a little problematical.

但是，在学前这段时间，有点小问题。

2·It should be noted, however, that even the use of the explicit sources is problematical.

应该指出的是，即使是使用明确的来源问题。

3·In Sophoclean tragedy the city is also the focus for the hero's problematical relation to civilized values.

由于莎佛克里士悲剧，这座城市也因这位男主角与文明价值之间的那种很成问题的关系而成了人们关注的焦点。

4·Success is proving that you can do something that you already know you can do, or doing something correctly the first time, which can often be a problematical victory.

成功只是证明你能够做你已经知道自己会做的事情，或是第一次就能正确地做某件事情，而这通常是一次有问题的成功。