重荷になる
have weight
荷づかえになる
The market is overstocked
(人のなら)to case one of a burden―relieve one of a burden―(自分のなら)―ease oneself of a burden―be relived of a burden
過重な重荷になること
of something, the condition of becoming a heavy burden
より重い重荷になる
the act of carrying something on one's back
重さをはかること
重いこと