a bold speech的用法和样例：
- Mr. White made a bold speech in public.
- My talk on August 8 this year at the forum on scientific and educational work was a bold speech,but of course it also made due allowance for current realities.
- He tried to put a bold face on his failure.
- Mr. Jordan made a bold speech.
- He is a bold thinker, with lots of original ideas.