介绍： 今日词汇
audience spectator
doubtful dubious skeptical
sight sightsee insight
echo vocal

1. audience ['ɔːdɪəns] n. 听众，观众，读者（受众）
2. spectator [spek'teɪtə] n. （尤指体育赛事的）观众
3. doubtful ['daʊtf(ə)l] adj. 不确定的；感到怀疑的
It was doubtful whether the patient would survive the operat...

介绍： 今日词汇
audience spectator
doubtful dubious skeptical
sight sightsee insight
echo vocal

1. audience ['ɔːdɪəns] n. 听众，观众，读者（受众）
2. spectator [spek'teɪtə] n. （尤指体育赛事的）观众
3. doubtful ['daʊtf(ə)l] adj. 不确定的；感到怀疑的
It was doubtful whether the patient would survive the operation.
病人能否挺过这次手术还无法确定。
4. dubious ['djuːbɪəs] adj. 可疑的，无把握的
I’m dubious about his promises to change his ways.
我对他改变他的生活方式的承诺表示怀疑。
5. skeptical ['skeptɪkəl] adj. 怀疑的
Many experts remain skeptical of/about his claims.
许多专家对他的主张仍持怀疑态度。
6. sight [saɪt] n. 视力，景象 vision，view
The old woman has lost her sight. 那位老妇人失明了。
The flowers at the annual flower show were a beautiful sight.
年度花卉展上的鲜花是一道美丽的景象。
7. sightsee ['saɪtsi:] v. 观光
go sightseeing 去观光 sightseer 观光客
8. insight ['ɪnsaɪt] n. 洞察力
It was an interesting book, full of fascinating insights into human relationships.
这是一本有趣的书，充满了对人类关系的独到见解。
insightful adj. 有深刻见解的，富有洞察力的
9. echo ['ekəʊ] n. 回声 vi. 发出回声，作出回应
echo location 回声定位（海豚，蝙蝠等动物）
10. vocal ['vəʊk(ə)l] adj. 有声的
vocal music 声乐 vocal cord 声带