main line

名词 n. 形容词 adj.
中文释义

英文释义

名词 n.
  1. A standard sequence of opening moves considered to be best play.
    — In that game, Carlsen sidestepped the main line of the Berlin Defense with 4 d4, hoping to unsettle Karjakin. That did not work, and chances were equal for most of the game.
  2. Alternative form of mainline. alt-of,alternative
    — Gavin Johns, chairman of the Swanage Railway Trust, said: "I would like to thank our stakeholders for their far-sighted investment of £5.5 million to re-connect Swanage and Corfe Castle with the main line, which included £1.8m from the Government's coastal communities fund, so we could restore our 1950s heritage diesel trains for running on the main line."
形容词 adj.
  1. Alternative form of mainline. alt-of,alternative,not-comparable
    — Caruana chose the Petroff 2 Nf3 Nf6, which used to be the weapon of choice for players aiming for a half point as Black, was relegated for some years due to the popularity of the Berlin 1 e4 e5 2 Nf3 Nc6 3 Bb5 Nf6, but has returned to favour as the main line Berlin with an early queen swap has been outmoded by 4 d3.

词形变化

main lines plural
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