<div dir="ltr">I've seen them always defined? Can we remove them?<br clear="all"><div><br></div>-- <br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature">         此致<br>礼<br>罗勇刚<br>Yours<br>    sincerely,<br>Yonggang Luo<br></div></div>