I repeatedly beat the eggs for thirty minutes
He slept for two hours
She queued up for a day to get that
for + 时间 = 花了/用了多少时间在一件事上
I repeatedly beat the eggs for thirty minutes
He slept for two hours
She queued up for a day to get that
for + 时间 = 花了/用了多少时间在一件事上