每日習(xí)語（11.17）

bad-mouth
    說壞話
    例句：
    Bob was always bad-mouthing his superiors until his boss threatened to fire him.
    老板威脅要炒鮑伯魷魚,他才停止說老板壞話。
    crash
    墜毀
    例句：
    The plane crashed when it took off.
    飛機(jī)起飛時(shí)墜毀了。