n. 线;螺纹;思路;衣服;线状物;玻璃纤维;路线
vt. 穿过;穿线于;使交织
vi. 通过;穿透过
thread 线,线索,脉络
来自古英语 thraed,线,绳索,来自 Proto-Germanic*threduz,纺线,编线,来自 PIE*tere,弯, 转,编织,词源同 turn,throw.引申词义线索,脉络等。
The silk line, as spun by the worm, is about the 5000th part of an inch thick; but a spider's line is perhaps six times finer, or only the 30,000th part of an inch in diameter, insomuch, that a single pound of this attenuated substance might be sufficient to encompass our globe. [John Leslie, "Elements of Natural Philosophy," Edinburgh, 1823]