| 挠头 | náo tóu | tricky / problematic / difficult / to scratch one's head (in puzzlement) | ![]() |
| 成问题 | chéng wèn tí | to be a problem / problematic / questionable | ![]() |
| 先天不足,后天失调 | xiān tiān bù zú , hòu tiān shī tiáo | to be born with a weak constitution and suffer from ill health during one's life / (fig.) to be problematic from the start, and get even worse over time | ![]() |
| 率性 | shuài xìng | to act naturally, authentically and spontaneously (whether seen as admirable &ndash / "bold" &ndash / or problematic &ndash / "impulsive") | ![]() |
