缆车: cable car...
学说: theory, doctrine...
接手: to take over (duties etc), catcher (baseball etc)...
领会: to understand, to comprehend, to grasp...
图形: picture, figure, diagram, graph, depiction, graphical...
年轻: young...
炊烟: smoke from kitchen chimneys...
更换: to replace (a worn-out tire etc), to change (one's address etc)...
惊喜: nice surprise, to be pleasantly surprised...
鳄鱼: alligator, crocodile...