01. account for
[1]說(shuō)明(原因等);
EG: His illness account for his absence from school.他因病未能去上學(xué)。
That accounts for it.原來(lái)如此。
[2](將保管的款項(xiàng))記賬;[3]對(duì)……負(fù)責(zé)( answer for )。
02. add up to
[1]合計(jì),總計(jì)(amount to ,count up to );
EG: These figures add up to 117.
[2]結(jié)果。