Give the cardboard two or three coats of varnish to harden it.在纸板上涂两三层清漆使其变硬。Their action can only serve to harden the attitude of landowners.他们的行动只会让土地拥有者的态度变得更坚定。The varnish takes a few hours to harden.清漆需要几个小时才能干透。...
Melted metal is poured into a mold to harden into shape.熔化之金属倒入模子中以冷却成形.Give the cardboard two or three coats of varnish to harden it.在纸板上涂两三层清漆使其变硬。The varnish takes a few hours to harden.清漆需要几个小时才能干透。Whilst Marc did gr...