1.backbone n. 支柱;主干網(wǎng);決心,毅力;脊椎
Agriculture forms the backbone of the rural economy.
農(nóng)業(yè)是農(nóng)村經(jīng)濟(jì)的基礎(chǔ) 。
2.harvester n. 收割機(jī);收獲者
He was the man who invented the combine harvester.
他就是發(fā)明聯(lián)合收割機(jī)的人 。
3.child care 兒童保育
Both women had hired illegal aliens for child care.
兩個(gè)女人都曾雇過(guò)非法入境者照看孩子 。