ingenuity

1. N-UNCOUNT Ingenuity is skill at working out how to achieve things or skill at inventing new things. 善於創(chuàng)新; 足智多謀

Inspecting the nest can be difficult and may require some ingenuity. 仔細(xì)檢查鳥巢可能有睏難，也許需要一些巧妙的心思。