1.cut off 切断
They were almost completely cut off from the outside world.
他们几乎完全与外界绝缘了 。
2.at some point 在某个时刻
At some point kids start doing things they didn't use to do. They get more independent
从某个时候起,孩子们开始做以前不曾做的事情 。他们变得更加独立 。
3. lay out 说明
Maxwell listened closely as Johnson laid out his plan.
马克斯韦尔仔细听着约翰逊讲解其计划 。
4.ports of entry 入境口
Airports have joined seaports as ports of entry for the visiting foreigner.
机场和海港一样成为来访的外国人的入境关口 。
5.cross-border 跨国的
Currency-conversion costs remain one of the biggest obstacles to cross-border trade.
货币兑换成本仍是跨境贸易的最大障碍之一 。