teething troubles
noun [ plural ] UK uk/ˈtiː.ðɪŋ ˌtrʌb.əlz/ us/ˈtiː.ðɪŋ ˌtrʌb.əlz/ (also teething problems)
初期困难，创业阶段的困难
problems that happen in the early stages of doing something new
There were the usual teething troubles at the beginning of the project, but that's to be expected. 这项工程一开始遇到了通常会碰到的初期困难，但那是意料之中的。