轮廓鲜明的print in bold type 用粗体字印刷 a bold cliff 陡峭的悬崖 Einstein was also a bold mathematician. 爱因斯坦也是一位富于想象力的数学家。

bold outline bold Italic bold hawse bold stroke outline drawing outline symbols outline plan outline projector outline border outline dragging quite circular in outline oval in outline depiction in outline BOLD bold lines bold corduroy bold-face extra bold bold-faced