Wall off
出國 Abroad杜絕,隔開
?? 詞語組成解析
off
[?:f, ?f]
prep. 從…落下;離開;從…去掉;下班;
adv. 離開;距，離;被取消;下班;
adj. 不新鮮的;不能接受;不禮貌;
n. 起跑;
v. 殺死;
??? 情景例句
I love the fresh air, the scenery, the exercise, and the time to think.
我喜歡新鮮的空氣、景致、運動以及有時間思考。
I will assist you in any way I can.
只要能做到的，我什么事情都愿為你做。
and you avoid the frustration of arriving at the very moment when the train is drawing out of the station and being unable to get on it.
而且可以避免那種正好在火車駛出站時趕到車站，因上不去車而感到的沮喪。