1.sprang to life 突然活跃
例句：The students, who had been tired and lazy all morning, sprang to life when the lunch bell rang.
那些学生一整个上午都是没精打采、洋洋的样子，但午餐铃声一响，顿时个个都变得生龙活虎7BIwVdm[BJ0t*o8byZ。

2.last vi.持续;维持

例句：The money has to last for the rest of the month.
这些钱得维持这个月剩下时间的费用3G5;R6V*Yb|8mp9。