我从十四岁时起就不得不照料自己.I've had to fend for myself since I was 14.一队学生鱼贯而入, 共有十四五个人.A group of students filed in, fourteen or fifteen all told.二十四 小时为一日.Twenty - four hours make a day....
a systematic approach to solving the problem系统解决问题的办法The way he works isn't very systematic.他的工作不是很有条理.They went about their business in a systematic way.他们按部就班地做生意。...