40.1.

EXTERNAL

external power

external drive

external sources

external hard drive

external means happening outside or located outside

external relations

EXTERNAL

40.2

DRIVE

to drive a car

do you know how to drive

in England and Japan

they drive on the wrong side of the road

a driver is someone driving

a driver is also a software component

that lets the operating system communicate with the hardware

to install a driver

DRIVE

40.3

HARD

hard is not easy

hard work

hard time

to try hard

to be hard at work

or be working hard

HARD

40.4

HARDNESS HARDSHIP

hardness of a certain material or person

is a feature of that material or person

hardness can be tested

hardship is a test by itself

materials are tested for hardness

persons are tested with hardships

the harder the material

the greater the hardness

the harder the hardship

the harder the test

HARDNESS HARDSHIP

40.5

HARDLY

hardly means almost not

hardly working

not at all working

let alone working hard

hardly ever happens

hardly anyone does it anymore

can hardly see it

almost cannot see it

are you hard at work ?

or are you hardly working?

hardly a day goes by

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