mindmap root((爬上)) ascend implies progressive upward movement: the car ~ed the steep grade. mount suggests a getting up upon something raised: ~ a horse. climb connotes the effort involved in the upward movement and is used when difficulty is implicit in the situation: ~ a tree to rescue a cat. scale suggests skill and adroitness in upward movement: ~ a high wall to freedom. （adroit机智，指能急中生智想办法达到目的skillful use of expedients to achieve one's purpose，如a adroit host of a radio call-in show一个机智的电台热线节目主持人。 expedient权宜之计）