A-wire

例句：

1. 1. The electrician was fixing the A-wire in the house.
   电工正在修理房子的电线。
2. 2. The car's engine is making a loud noise, and I think it might be due to a loose A-wire.
   汽车发动机发出很大的声音，我想可能是由于一根松动的电线造成的。
3. 3. The old man carefully checked each A-wire for any damage before starting his work.
   老人仔细检查了每根电线，以防有任何损坏，然后才开始工作。