herculean

Moving that enormous sofa upstairs was a herculean task. ▶

把那张巨大的沙发搬上楼真是一项艰巨的任务。

Restoring transport networks after widespread flooding requires a herculean effort from engineers, local authorities and volunteers.

大范围洪灾后恢复交通网络，需要工程师、地方政府和志愿者付出极大的努力。