解释下列词语。
⑴畅泳:____________________________
⑵反诘:____________________________
⑶理直气壮:________________________
⑷雄辩:____________________________
⑸感慨:____________________________
⑹引申:____________________________
⑺顽固:____________________________
⑻成见:____________________________
⑼如饥似渴:________________________
⑽指教:____________________________
⑾坦怀:____________________________
⑿博爱:____________________________
⒀人饥己饥、人溺己溺:__________________
⒁若无其事:____________________________