Certified reference material
[化] 有证标准物质
🧩 词语组成解析
certified
[['sə:tifaid]]
a. 证明合格的\\n[化] 检定的; 证明的; 书面证明的
material
[mə'tɪrɪəl]
n. 材料，原料;素材;布，织物;适当人选;
adj. 物质的;肉体的;重要的，决定性的;辩证的，推论的;
🗣️ 情景例句
And this is my sister Susan and her husband Harry Bennett
这是我妹妹Susan和她丈夫Harry Bennett
Let me direct that question to the manager.
让我直接问经理好了。
They are not anxious social climbers, and they have no devotion to material things.
他们不热衷于向上爬，也不一味追求物质享受。