(1) 大胆的，勇敢的 ((of a person or his behaviour) daring， fearless， adventurous)：a～action/plan/scheme/proposal大胆的行为/计划/方案/建议;a～hero/warrior/soldier/explorer勇敢的英雄/战士/战士/探险家;～tactics/adventure大胆的战术/冒险;She has～brown eyes.她褐色的双眼一点也不怯生。The little girl was surprisingly～.那小姑娘惊人地胆大。〖同〗brave，daring，courageous，fearless;〖反〗cowardly，fearful;

(2) 厚脸皮的，无礼的 (without feelings of shame; immodest)：a～girl/remark/reply/glance 无礼的姑娘/粗鲁的评论/粗鲁的回答/不礼貌的一瞥;～behaviour粗鲁的行为;The～fellow simply put out his hand and asked for more money.那厚颜无耻的家伙就那么伸出手来要更多的钱。〖同〗rude; 〖反〗shy，polite;

(3) 清晰的，醒目的，突出的(clearly formed; clear and distinct to the eye; striking)：the～shape/outline of the cliffs悬崖清晰的形状/轮廓;in～relief 对比鲜明;a dress with～stripes 粗条纹的衣服;a～pattern清晰的图案;a～cliff 突兀的悬崖;～colours醒目的颜色;～handwriting 清楚的笔迹;draw (paint) sth in a few～lines/with～strokes of the brush 粗粗几笔/潇洒有力地画……;paint one's lips with～strokes画出醒目的唇线;〖同〗striking，distinct;

(4) 粗(黑)体的(printed in thick type)[无comp]：print sth in～type/letters 用粗体/粗体字印刷;

as bold as brass厚颜无耻地：He walked in very late as～as brass.他厚颜无耻地很晚才进来。

be/make (so) bold (as) to do sth (社交上)冒昧：If I may be so～as to speak frankly， I found your comments wrong. 恕我直言，我觉得你的批评是错误的。I made～to offer my suggestion.我冒昧地提出我的建议。

→′boldly adv 大胆地;冒失地;′boldness n 大胆，冒失;′boldface n 黑(粗)体字; ͵bold′faced adj 厚颜无耻的;粗(黑)体的