to find out how heavy something is
to weigh
a machine like a laptop, mobile phone or tablet
a device
with 100% battery
fully charged
people with the job of making sure there is no danger
security staff
water, tea and oil are all examples of this
a liquid
to be permitted or possible
to be allowed
inside a plane, boat or train
on board
the area in the plane where suitcases go
the hold
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