1、With the American market hardly booming, a third class of firms has rushed to expand globally.
因美國(guó)市場(chǎng)幾難擴(kuò)展，一些三類律所也向全球市場(chǎng)奔去。

2、The third class is for ideas that are impossible because they violate the laws of physics.
第三類是那些違反物理定律的想法，因而不可能實(shí)現(xiàn)。

3、The P&G uses third class to mail free samples of soap.
P&G公司以三類郵件寄出免費(fèi)肥皂樣品。

4、The personnel of the third class have not trained the professional knowledge yet.
第三班的人員還沒(méi)有進(jìn)行專業(yè)知識(shí)培訓(xùn)。