内容简介

significant：意义重大
Your success today may be significant for your whole life.

signal 信号；发出信号；

sign 符号
As soon as the seat belt sign had been switched off, we rushed out.

sympton 信号、症状（内部变化，而导致外在表现）
If the sympton persist, it is important to go to your doctor.

strive 努力 奋斗
Strive for the best, prepare for the worst.