砂利をセメントで固める必要がある。

Meaning
it is necessary to cement gravel

Vocab used in this sentence

砂利
gravel, ballast, pebbles, small stones, shingle, gravelly, dirt
o, the, to, wo
セメント
cement
in, at, on, with, by, over, through
固める
harden, consolidate, fortify, freeze, to harden, to solidify, to strengthen, solidify, cement
必要
need, have, necessary, needed, required, must, want, essential, necessity, indispensable
is, there, but, ga, will, however
ある
a, is, an, be, there is, to be, locate