脐上筑
参考答案:筑者捣也,形容脐上跳动不安如有物捶捣
—"Excuse me, can he _______ it in English?"
—"Of course." [ ]
A. say
B. speak
C. talk
D. tell
用百分表测量工件时,长指针转1倍,齿杆移动0.1mm。