We need to take a firm line on tobacco advertising.

　　我們需要對(duì)煙草廣告采取強(qiáng)硬的態(tài)度。

　　They hired a firm of consultants to design the new system.

　　他們請(qǐng)了一家咨詢公司來設(shè)計(jì)新的系統(tǒng)。

　　We have no firm evidence to support the case.

　　我們沒有確鑿的證據(jù)支持這個(gè)論點(diǎn)。

　　This product claims to firm your body in six weeks.

　　這個(gè)產(chǎn)品據(jù)稱能在六周內(nèi)使身體強(qiáng)壯。

　　They took a firm stand against drugs in the school.

　　他們堅(jiān)決反對(duì)校園吸毒現(xiàn)象。