Gram stain
[化] 革蘭氏染色
?? 詞語組成解析
gram
[gr?m]
n. 綠豆;鷹嘴豆;綠豆種子;克;
stain
[sten]
vi. 弄臟;污染;被玷污;
vt. 玷污，染污;敗壞（名聲）;給…染色;
n. 污點(diǎn);瑕疵;著色劑;色斑;
s(dis的簡型)+tain(to dye染色)→染污；污點(diǎn)
??? 情景例句
I'm about to go to the Post Office.
我正要去郵局。
We couldn't help the accident.
我們未能防止事故發(fā)生。
The day after, Patrick went to the house once more and asked exactly the same question.
第三天，帕特里克又去了，提出了同前兩天完全一樣的問題。