in lockdown – in a situation in which people are not allowed to enter or leave a place or area freely because of an emergency
border – a line separating one country or state from another
border post – a border checkpoint, where people, cars, etc., are searched by someone before being allowed to continue
to put a strain on something – to make something more difficult to manage
temporary – not lasting for a long time; not permanent
exception – a case where a rule does not apply
to fast-track – to make things happen faster or earlier than normal
lorries – trucks (vehicle that transport stuff)
essentials – things that are absolutely necessary