我设法对父母瞒下了此事。I managed to keep my parents in the dark about this.她知道加布里埃尔有事瞒着她。She knew that Gabriel was keeping something from her.他们拼命想要瞒住这桩婚事。They were desperate to keep the marriage hush-hush....
As the name suggests, wear - resistant electrode, high wear resistance, hardness also high.顾名思义, 耐磨 焊条, 耐磨性能高, 硬度也就高.The process of hypophosphite electrooxidation on a nickel electrode could be well simulated by this mod...