Spectroscopic is the adjective for anything to do with spectroscopy — the study of light split into its colours. It describes methods, instruments, evidence, and results: spectroscopic analysis, spectroscopic data, a spectroscopic study of a star, spectroscopic evidence that water exists on a planet. In plain terms, if something is 'spectroscopic', it was found out by looking at which colours of light a thing gives off or absorbs.

Spectroscopic Spectroscopic is the adjective for anything to do with spectroscopy是跟 spectroscopy（光譜學）有關的形容詞 — the study of light split into its colours也就是研究光被分解成各種顏色的學問. It它 describes methods, instruments, evidence, and results用來形容方法、儀器、證據，和結果: spectroscopic analysis, spectroscopic data, a spectroscopic study of a star, spectroscopic evidence that water exists on a planet比如「光譜分析」「光譜數據」「對一顆星星的光譜研究」「證明某行星上有水的光譜證據」. In plain terms白話一點說, if something is 'spectroscopic'如果某樣東西是「spectroscopic」的, it was found out by looking at which colours of light a thing gives off or absorbs意思是它是靠觀察一個東西發出或吸收哪些顏色的光才發現的.

Note that this is NOT the instrument itself — the instrument is a spectroscope. A dictionary line saying 'an instrument used for forming and looking at spectra' has slipped; that definition belongs to spectroscope.

Note that請注意 this is NOT the instrument itself這個字本身不是指儀器 — the instrument儀器 is a spectroscope叫做 spectroscope. A dictionary line saying 'an instrument used for forming and looking at spectra'有一種字典寫法「用來產生和觀察光譜的儀器」 has slipped是寫錯位置了; that definition那個定義 belongs to spectroscope其實是屬於 spectroscope 這個字的.

Spectroscopic is purely a describing word, and you will nearly always see it in front of a noun, never standing alone after 'is'. Scientists write 'spectroscopic measurements were taken'; nobody says 'the result was spectroscopic'.

Spectroscopic Spectroscopic is purely a describing word純粹是一個形容詞, and you will nearly always see it in front of a noun而且你幾乎都會看到它放在名詞前面, never standing alone after 'is'不會單獨接在 'is' 後面. Scientists科學家 write 'spectroscopic measurements were taken'會寫「進行了光譜測量」; nobody says 'the result was spectroscopic'.沒有人會說「這個結果是 spectroscopic 的」.

This is specialist vocabulary — physics, chemistry, astronomy, materials science, and the papers written in those fields. An A1-A2 student will not need to produce it, but may well meet it while reading about space or science, and it helps to know the word simply flags 'done by studying light'.

This這 is specialist vocabulary是專業詞彙 — physics, chemistry, astronomy, materials science, and the papers written in those fields物理、化學、天文學、材料科學，還有這些領域寫的論文. An A1-A2 student A1-A2 程度的學生 will not need to produce it不需要自己寫出這個字, but may well meet it while reading about space or science但讀到跟太空或科學有關的內容時很可能會遇到它, and it helps to know the word simply flags 'done by studying light'.而知道這個字其實就是在標示「靠研究光做出來的」會很有幫助.