specabbr.细则；规格(=specification)abbr.投机（=speculation)abbr.特别；特别地（=special/specially)Spectracef是一种抗菌药(含cefditoren pivoxil)

1. The professor took a spectrum analysis in class.
   教授在课堂上做了一次光谱分析。
2. This noteworthy discovery was made by spectroscopic analysis.
   这一值得注视的发现是由光谱分析作出的。