Desmodur r
[化] 德斯莫杜尔R
🧩 词语组成解析
聚氨基甲酸酯类粘结剂
🗣️ 情景例句
But personally I believe a business letter should end with Very truly yours, not Sincerely.
还行，乔治。但是我个人相信一封商业信函应该以“敬上”结尾，而不是“谨启”。
Don't flatter me.
不要奉承我。
They can't pick up the small pieces with their fingers.
他们用手指拿不起小零件。