n. (由鼹鼠打洞扒出的泥土堆成的)鼹鼠丘;琐事;无意义的事;小困难(或障碍)
molehill 鼹丘
mole,鼹鼠,hill,小山。比喻用法。
To much amplifying thinges yt. be but small, makyng mountaines of Molehils. [John Foxe, "Acts and Monuments," 1570]