【阶梯英文】
enthusiasm
unlimited enthusiasm
He has unlimited enthusiasm.
Anything for which he has unlimited enthusiasm
A man can succeed at almost anything for which he has unlimited enthusiasm.

【阶梯中文】
热情
无限的热情
他有无限的热情。
只要他有无限的热情
无论何事，只要对它有无限的热情你就能取得成功。

【单词解析】
enthusiasm：热情；实用短语：an outburst of enthusiasm：热情奔放；实用例句：The perfomp3ance moved the audience to enthusiasm：演出使观众极为感动。