同根派生 sit ups相关词英汉例句This news made us all sit up and take notice.这消息立即引起我们大家的注意。He is used to sitting up late.他习惯熬夜。Some people prefer sitting up to going to bed early.有些人宁可熬夜,而不早睡。It is a bad habit to sit up late at night.熬夜是个坏习惯。sit ups更多例句