arduous
adj
ˈɑːdjuəs
adj
1
involving
a
lot
of
strength
and
effort
费力的，艰巨的
arduous
task/work
the
arduous
task
of
loading
all
the
boxes
into
the
van
将所有箱子搬上货车的费力活
arduous
journey/voyage
an
arduous
journey
through
the
mountains
穿越山区的艰难旅程