burdensome
🇺🇸
/ˈbɜːrdnsəm/
🇬🇧
/ˈbɜːdnsəm/
causing a lot of trouble or difficulty
Carrying the heavy box up the stairs was burdensome for the child.
对孩子来说,把沉重的箱子搬上楼梯是繁重的。