This scientist has putforth a new theory in his research field.
这位科学家在他的研究领域提出了一种新理论。
2
Over the years several other theories have been putforth, but none has been accepted by the scientific community.
多年来,又有人提出了一些其他的理论,但没有一个被科学界接受。
3
Facing an $8.3 billion budget deficit this year, closing post offices is one of several proposals the Postal Service has putforth recently to cut costs.