gate turn-off thyristor

例句：

1. 1. The gates of the palace were closed to the public.
   宫殿的大门对公众关闭。
2. 2. The gatekeeper checked all visitors' IDs before letting them in.
   守门员在让访客进入前检查了所有游客的身份证明。
3. 3. The gateway to success is often found through hard work and determination.
   通往成功的道路通常通过努力和决心找到。