手掌: palm...
工商界: industry, the world of business...
原材料: raw materials, unprocessed materials...
减轻: to lighten, to ease, to alleviate...
合计: to add up the total, to figure what sth amounts to, to consider...
只顾: solely preoccupied (with one thing), engrossed, focusing (on sth), to look after only one aspect...
腹泻: diarrhea, to have the runs...
必不可少: absolutely necessary, indispensable, essential...
焦虑: anxious, worried, apprehensive...
操场: playground, sports field, drill ground...
