You can take ONE pieces of hand luggage within a total weight of 5 kgs.
您可携带2件手提行李，重量不超出5公斤。

You will have to stay at Los Angeles airport for more than three hours.
您需要在洛杉矶机场停留3个多小时。

There are no direct flights to San Francisco，you will need to connect at LAX.
没有直达的洛杉矶航班，您需要在旧金山中转。

What is the reason for the delay？Because of air traffi ccontrol。
为什么延误？因为天气原因。