初等: elementary (i.e. easy)...
私事: personal matters...
野餐: picnic, to have a picnic...
圣诞节: Christmas time, Christmas season, Christmas...
气氛: atmosphere, mood...
尚: still, yet, to value, to esteem...
码: a weight, number, yard, pile, stack...
忽然: suddenly, all of a sudden...
不由自主: can't help; involuntarily (idiom)...
