How about a pure CSS/HTML solution? The below has the added benefit of maintaining the correct content/style separation and having a minimal code footprint.
Demo Fiddle
HTML
<a href='#' data-englishLabel='School' data-chineseLabel='學校'></a>
CSS
a:before {
content:attr(data-chineseLabel);
}
a:hover:before {
content:attr(data-englishLabel);
}