1.concentrate vt.& vi.專心于;注意
We must concentrate our energies on treating addiction first.
我們必須首先集中精力治療毒癮 。
2.relocate vt.& vi.遷移;重新安置
If the company was to relocate, most employees would move.
如果這個公司要搬遷,多數員工也要搬家 。
3.outdoors n.戶外;露天;野外
Life in the great outdoors isn't supposed to be luxurious.
美好的戶外活動不必很奢侈 。
4.urban adj.都市的
The government is spending billions of dollars on new urban rail projects.
政府正把數十億元花在新城市鐵路項目上 。