Thraclene
(=6-methyl hepten-5-yl-acetate)乙酸-6-甲基庚烯-5-酯
🗣️ 情景例句
Keep your chin up.
别灰心。
A man without a smiling face must not open a shop.
人无笑脸，不要开店。
CHRISTMAS DAY
圣诞节