四核性能的英文：
quad-core performance
n.
1. = quadrangle 四方院子（四周有建筑，常见于校园）
2. = quadruplet 四胞胎之一
- quad bistable latch
四组双稳锁存器 - The front quad, where I lived, was floored and tented.
在我居住的四方院子的前排楼房下已经铺起地板，支起帐篷。 - Downhill running has its upsides but kills your quads. Here's how to avoid the burn.
下坡跑有好处，但是容易伤着您的股四头肌。以下是如何避免这种伤害。
n. 核心；精髓；果心；地核
v. 挖去…的果心
- inner core tube
内倒望远镜 - magnetic core switch
磁铁心开关 - core ,for electric transformers
线圈心,变压器用
n. 演出，表演；履行；执行；工作；成绩；成果
- She gave a respectable performance.
她的演出还不错。 - The performances have been absolutely phenomenal.
表演绝对精彩。 - It's an insufferably cute performance.
这是一场不能忍受的矫揉造作的表演。