"a witty impromptu must not sound premeditated"
"his ad-lib comments showed poor judgment"
"an extemporaneous piano recital"
"an extemporary lecture"
"an extempore skit"
"an impromptu speech"
"offhand excuses"
"trying to sound offhanded and reassuring"
"an off-the-cuff toast"
"a few unrehearsed comments"
"he spoke ad lib"
来自柯林斯例句
来自《简明英汉词典》
来自《简明英汉词典》
来自《简明英汉词典》
来自汉英文学 - 现代散文