n.愚蠢的人；愚蠢的錯誤
v.閑混；犯錯誤；做蠢事；把 ... 弄得一團糟
I told him not to goof around. 我叫他不要游手好閑。
You will never be good students so long as you goof around. 如果你們成天游手好閑，就永遠也成不了好學(xué)生。
