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n. 转辙器信号
🗣️ 情景例句
It was not until yesterday that I noticed it.
我一直到昨天才注意到它。
I dislike snakes.
我讨厌蛇。
It was called Saving the earth and it was all about the damage that is being caused to the world.
会议叫“拯救地球”，所以全是有关地球遭受破坏的事情。