汉译英 到达伦敦以后,他发现几乎听不懂别人在谈论什么

1 到达伦敦以后,他发现几乎听不懂别人在谈论什么.
"Upon his arrival in London,he found that he couldn't understand what other people were talking about."
2 如果恶劣天气持续的话,将会出现更严重的交通问题.
"If the weather deteriorates,the traffic congestion (problem) will become more serious."