马上

at once; right away; right off; straight away; at any minute; without delay; right off the bat; on the spot; soon; shortly; immediately; instantly; momentarily; promptly; forthwith; pronto; ASAP; whereupon; moment; immediate; instant

到达

arrive; reach; make; get; turn; come; get to; access; make it; come to; make it to; hit; gain; roll up; arr. (used for showing the time when a plane, bus, or train arrives somewhere); arrived; inbound; arrival; reaching; attainment; through; to; upon arrival; on arrival