trickiness
🇬🇧/ˈtrɪkɪnɪs/ 🇺🇸/ˈtrɪkɪnəs/the quality of being tricky, or the quality of requiring skill or caution.
noun [抽象名词]诡计多端；狡猾；棘手；欺骗
There is one trickiness about this reaction.
关于这个反应有个棘手处。
单词造句:
There is one trickiness about this reaction.
关于这个反应有个棘手处。