请问collapse与disappear算是同义词吗？

应该不算。

collapse

1

[V] to

fall down or fall in suddenly, often after breaking apart （突然）倒塌，坍塌 give way ： The roof collapsed under the

weight of snow. 房顶在雪的重压下突然坍塌下来。

OF SICK PERSON 病人

2

[V] to

fall down (and usually become

unconscious), especially because you are

very ill/ sick （尤指因病重而）倒下，昏倒，晕倒 ： He collapsed in the street and

died two hours later. 他昏倒在大街上，两小时後便去世了。

disappear

1

[often +adv./prep.] to become impossible to see 消失；不见

vanish ： The plane disappeared behind a cloud. 飞机消失在云层裏。 ?

Lisa watched until the train disappeared from view.

莉萨一直看着火车从视线中消失。

2

to stop

existing 不复存在；灭绝；消亡 vanish

： Her

nervousness quickly disappeared once she was on stage. 她一走上台紧张情绪便迅速消失了。 ? The problem won't just

disappear. 这个问题不会就这样不了了之的。 ? Our countryside is

disappearing at an alarming rate. 我们的农村地区正在以惊人的速度消亡。