Santodex
山道狄克斯(一种粘度添加剂), 粘度指数改进剂
🗣️ 情景例句
If I have time, I enjoy camping in the wild with my friends.
若时间许可，我爱和朋友到野外露营。
Without practice, hopes will be reduced to zero.
没有实践，希望会化为乌有。
It is growing cool.
天气渐渐凉爽起来。