1.set foot on 踏上

例句：They first set foot on our soil as adventures.

他们起初是以冒险家身份踏上我国国土的.

2.economic slowdown 经济放缓

例句：The sudden economic slowdown was an changer for the election.

经济增长突然放缓为选举带来了意想不到的变数.

3.gun control 枪械管制

例句：France has tight gun-control laws for handguns, but not for hunting rifles.

法国针对手枪有严格的枪支管制法规，但并不限制猎枪。

4.check on 检查

例句：Will you check on the time the train leaves?

请你核对一下火车开出的时间好吗?