thread

Thread本義是線或者線狀物、路線，作名詞也可以用作一種抽象的含義，指貫穿某件事的部分，比如貫穿思想或對話的一條線，它們好像由thread連線在一起。

If you were distracted by a crash in the kitchen, you might lose the thread of your conversation.

如果你因為廚房裡的碰撞而分心，你可能會失去談話的thread。

Thread還可以指螺釘或螺栓外面凸起的脊狀物，當你想要串或讓線穿過針時，你也可以把thread用作動詞。

The sound distracted me and I lost the thread of (= forgot) what I was saying.

我被那個聲音打擾