例句與造句

1. Truth in advertising . when companies introduce a new product , the law requires a proof of claims ? ? tooth ? paste that promises whiter teeth must have evidence that it delivers
   推銷的真實(shí)性法律規(guī)定公司推銷一種新產(chǎn)品時(shí)要有理有據(jù)? ?如一種牙膏聲稱可刷白牙齒，那就必須提出有此效果的證據(jù)。
2. It's difficult to find proof of claim in a sentence. 用proof of claim造句挺難的