Ysf
abbr. Stony Rapids; Sask; Canada 加拿大; yield safety factor 屈服安全系數
??? 情景例句
So, are there any major cultural differences between our two nations?
我們兩國間有什么大的文化差異嗎？
Please try and answer the request soon.
請試著立刻回答人家的請求。
Take care!
保重！