Physeptone
6-二甲氨基-4, 4-二苯基庚子酮盐酸盐
🗣️ 情景例句
a portrait of the United States--
一幅美国的剪影--
Why so mysterious?
干嘛神秘兮兮的？
or those inviting 'our camping friends' to a dance or a boat trip are printed not only in French or Italian or Spanish,
和邀请露营朋友参加舞会、乘船观光的招贴不仅印成法语、意大利语、西班牙语，