1. His dark eyes shone like polished glass; his arms and legs moved unexpectedly, as if attached to unseen wires.
    他深色的眼睛里闪着光，好似擦亮了的玻璃；他手臂和双腿冷不防地移动着，就好像是连着看不见的电线似的。

2. I slipped from the room unseen .
    我悄悄地溜出房间, 无人察觉.