Strength grading of cement
[化] 水泥标号
🧩 词语组成解析
[经] 分级, 归类
of
[əv]
prep. 关于;属于…的;由…制成;
aux. 助动词 [非标准用语、方言] =have [主用于虚拟语气];
cement
[si'ment]
n. 水泥;胶合剂;胶接剂;粘固粉;
vt. 粘牢;巩固;（用水泥、胶等）粘结;在…上抹水泥;
🗣️ 情景例句
At any rate, our country and the United States need each other.
总而言之，我国与美国相互需要。
Do you think it looks good on me?
你看我穿着好看吗？
Just let me wipe your table and then I'll take your order. OK?
让我先吧桌子擦擦再听您点菜好吗？