WPML (The WordPress Multilingual Plugin) is the defacto standard method of building multilingual WordPress websites
WPML integrates well with most other major plug-ins such as WooCommerce and allows for easy translation of content. I have a WPML licence for life so can use it in any number of projects. Some examples of WPML in action can be found below. Note that I don’t offer translation services directly but if you need someone to translate your content for you I can source a translator for you.
This website was a conversion from another CMS platform called Concrete5. Hosting was provided by the client and I converted their existing template into WordPress and used WPML to enable their Chinese translations for each page.
I also customised an additional plug-in called Visual Composer with their own content components, making their editing experience as close as possible to that of their old CMS, Concrete5.