spilehole

例句：

1. 1. The old man sat by the fireplace, enjoying the warmth and the occasional puff from his pipehole.
   老人坐在壁炉旁，享受着温暖和偶尔从烟斗孔冒出的烟雾。
2. 2.The chimney was blocked with soot, making it difficult to see through the pipehole.
   烟囱被煤灰堵塞了，很难通过烟斗孔看出去。
3. 3.The fireman had to clear the flue hole to ensure that the smoke could escape properly.
   消防员不得不清理烟道孔，以确保烟雾能够正常排放。