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. As if this were not enough to reduce you to tears, your husband arrives, unexpectedly bringing three guests to dinner.
    好像这一切还不足以使你急得掉泪，你的丈夫接着回来了，事先没打招呼就带来3个客人吃饭。

3. Your husband arrives, unexpectedly bringing three guests to dinner.
    你丈夫回来了，出人意料地带了三位客人来吃午饭。

4. My aunt unexpectedly returned one afternoon with a party of guests and instructed Bessie to prepare dinner.
    一天下午，她出其不意地回来了，带来一大批客人，吩咐贝西准备晚饭。