Restricted materials
内部参考资料
🧩 词语组成解析
restricted
[ri'striktid]
adj. 有受限制的;（土地）对公众不完全开放的;保密的;
v. 限制( restrict的过去式);
materials
[[mə'tiəriəlz]]
n. 材料；材料费；材料科学；材质（material的复数）
🗣️ 情景例句
After you.
请先走。
He devoted himself completely to his work.
他完全投身于工作。
Litter baskets have been placed under the trees, but people still throw their rubbish everywhere.
树下都已设置了废物筐，但是人们仍到处扔垃圾。