外贸LC与谷歌竞价推广解析：如何选择最佳海外推广方案
外贸LC是什么意思？ | What is Foreign Trade LC?
外贸LC（Letter of Credit，信用证）是国际贸易中最常用的支付方式之一，由银行作为第三方担保，确保买卖双方交易安全。据统计，超过60%的国际贸易选择LC作为支付方式。
Foreign Trade LC (Letter of Credit) is one of the most commonly used payment methods in international trade, with banks acting as third-party guarantors to ensure transaction security. Statistics show that over 60% of international trade chooses LC as the payment method.
谷歌竞价推广解析 | Google Ads Explained
谷歌竞价推广（Google Ads）是通过竞价排名机制在谷歌搜索结果页展示广告的营销方式。广告主按点击付费（PPC），是获取海外客户的快速渠道。
Google Ads is a marketing method that displays advertisements on Google search results pages through a bidding ranking mechanism. Advertisers pay per click (PPC), making it a fast channel to acquire overseas customers.
代理选择建议 | Agency Selection Advice
虽然谷歌在全国设有代理，但建议优先选择带有谷歌体验中心的正规代理。更推荐企业通过Google Ads官网自助开户，仅需10美元起充且无服务费，还能避免不正规代理的恶意点击问题。
Although Google has agencies nationwide, it is recommended to prioritize official agencies with Google Experience Centers. We more recommend businesses to open accounts directly through Google Ads official website, with a minimum deposit of $10 and no service fees, while also avoiding malicious click issues from irregular agencies.
效果对比分析 | Performance Comparison
近年来Google Ads效果下滑明显：
• 关键词成本上涨300%+
• 平均转化成本增加
• 性价比低于谷歌SEO和多语种YouTube视频
In recent years, Google Ads performance has significantly declined:
• Keyword costs increased by 300%+
• Higher average conversion costs
• Lower cost-effectiveness compared to Google SEO and multilingual YouTube videos
