Critical material
[化] 关键材料
🧩 词语组成解析
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
But to tell the truth,
但是老实说，
That's just what I was thinking.
我就是这么想的。
Who won the girls' 400 metres?
女子400米赛跑谁获胜？