Dinaphthenate
二环环烷酸盐
🗣️ 情景例句
When you feel your life is threatened, just dial 999 to get help.
当你的生命受到威胁的时候，拨打 999 求救。
Packing charges are excluded in the quoted prices.
包装费用未算在报价中。
Lying and stealing are immoral.
说谎和偷窃都是不道德的。