同根词
catch one's attention phr. 吸引某人的注意
Short of yelling at him, I had no other way to catch his attention. 除了大声向他喊叫，我真想不出还有什么办法能引起他的注意。
Bright colours engage a baby 's attention . 鲜艳的颜色引起婴孩的注意。
cause n. 原因
Nobody knew the cause of the explosion. 没有人知道爆炸的原因。
同根词
celebration n. 庆祝；庆祝活动
A wedding is an occasion for celebration. 婚礼是欢庆的时刻。
cell n. 细胞
It kills every cell it comes in contact with. 它会消灭所有接触到的细胞。
