n. 抓子游戏;千斤顶( jack的名词复数 );(电)插孔;[电子学]插座;放弃;
例句:
These loads are normally applied by hydraulic jacks acting directly at the point of application offorce.
通常这些荷载是用液压千斤顶直接施加于力的作用.
Buy me some peanuts and Cracker Jacks.
给我买一些花生和饼干.
Young people, all, cannot become jacks all-trades.
毕竟, 年轻人并不能称为“万能博士”.