develop的名詞怎么寫

　　They had laid the groundwork for future development.

　　他們?yōu)榇撕蟮陌l(fā)展奠定了基礎(chǔ)。

　　The central plank of the bill was rural development.

　　這一法案的核心是農(nóng)村發(fā)展。

　　Scores of U.S. companies farm out software development.

　　許多美國公司外包軟件開發(fā)。