Hints: 本期学习的字源：optim=best最佳 Northern Taiwan 单词不需要大写，单词与例句或不同词条之间换行即可。 注解中详细介绍了单词的拆分与释义，是学习字源分析的重中之重！一定记得听写后来看注解！
optimism optimal The solar eclipse can only be seen in Northern Taiwan under optimal conditions. optimist An optimist is one who looks at a half-full glass of water and notices the half that is full. optimistic Though by no means certain of eventual success, I remain cautiously optimistic. optimize The new graphics accelerator interface can optimize multimedia effects on your computer. optimum The chief merit of the capitalist system is that it keeps resource allocation at an optimum level.
The solar eclipse can only be seen in Northern Taiwan under optimal conditions. 在最佳的条件下北台湾才可以看到这次日食。 An optimist is one who looks at a half-full glass of water and notices the half that is full. 乐观主义者就是看到半杯水会注意到有水那一半的人。 Though by no means certain of eventual success, I remain cautiously optimistic. 虽然绝非有把握最后会成功，但我还是保持审慎的乐观。 The new graphics accelerator interface can optimize multimedia effects on your computer. 新的图形加速器界面可以让你的电脑的多媒体效果发挥到最佳。 The chief merit of the capitalist system is that it keeps resource allocation at an optimum level. 资本主义制度的最大优点就是讲资源分配维持在最佳状态。