Complete each sentence with a proper adjective in the box.tangible lavish optimal inclusive intuitive detrimental1. The research shows that there's really nothing more _______ in life than a prolonged period of unemployment.2. It took courage for them to invest money in the pursuits, for there wasn't an immediate, _______ return on their investment.3. The evening was a _______ affair with glorious food and an endless supply of champagne.

步骤 1：理解句子含义
1. 句子表达的是失业对生活的影响，需要一个形容词来描述这种影响。
2. 句子表达的是投资的回报，需要一个形容词来描述这种回报。
3. 句子表达的是晚宴的氛围，需要一个形容词来描述这种氛围。

步骤 2：选择合适的形容词
1. "detrimental" 意为有害的，符合句子表达的失业对生活的负面影响。
2. "tangible" 意为具体的，有形的，符合句子表达的回报是具体的。
3. "lavish" 意为奢侈的，符合句子表达的晚宴的豪华氛围。

步骤 3：验证答案
1. "The research shows that there's really nothing more detrimental in life than a prolonged period of unemployment." 这句话的意思是“研究显示，生活中没有什么比长期失业更糟糕的了。”
2. "It took courage for them to invest money in the pursuits, for there wasn't an immediate, tangible return on their investment." 这句话的意思是“他们投资这些追求需要勇气，因为他们的投资没有立即得到具体的回报。”
3. "The evening was a lavish affair with glorious food and an endless supply of champagne." 这句话的意思是“晚宴是一场奢华的盛宴，有美味的食物和无尽的香槟供应。”