disappear/dɪsəˈpɪə(r)/
vi.1. 消失；不见The boy disappeared round the corner.男孩在拐弯处消失了。
The sun disappeared behind a cloud.太阳在云层后面消失了。
The ships seem to have disappeared off the face of the earth.那些轮船似乎已经从地球表面消失了。
My keys have disappeared off the desk in my office.我放在办公桌上的钥匙不见了。
2. 不存在；绝迹；失踪