名词短语
中文翻译：被笼罩的齿轮
同义词：
['enshrouded gear', "shrouded machinery例句：1. The old clock's pinion was so worn that it wouldn't turn at all.（旧钟的齿轮磨损得如此严重，以至于根本不能转动。）"]
例句：
-
1. The old clock's pinion was so worn that it wouldn't turn at all.
旧钟的齿轮磨损得如此严重，以至于根本不能转动。
-
2. The old car's engine was shrouded in rust, making it difficult to start.
那辆旧车的引擎被锈覆盖了，很难启动。
-
3. The new machine's pinions are enshrouded in grease, ensuring smooth operation.
新机器的齿轮被油脂覆盖，确保了顺畅运行。