约: to make an appointment, to invite, approximately, pact, treaty, to economize, to restrict, to reduce (a fraction), concise...
由来: origin...
曲线: curve, curved line, indirect, in a roundabout way...
示威: to demonstrate (as a protest), a demonstration, a military show of force...
调度: to dispatch (vehicles, staff etc), to schedule, to manage, dispatcher, scheduler...
张灯结彩: to be decorated with lanterns and colored banners (idiom)...
乘: to ride, to mount, to make use of, to avail oneself of, to take advantage of, to multiply (math.), Buddhist sect or creed...
担: shoulder; take on; undertake...
脑子: brains, mind...
争: to strive for, to vie for, to argue or debate, deficient or lacking (dialect), how or what (literary)...
