advance in parallel;keep abreast of;undertake two or more tasks at the same time 这些工作应该～。These tasks should be undertaken simultaneously. or:These tasks should be done all at once.
齐头并进qí tóu bìnɡ jìn
几支队伍共同前进。advance side by side, fight on several fronts, have too much on one’s plate, do many things at once