同义词

v. lose weight，reduce，slenderize，slim

反义词

v.   gain，put on

参考例句

1. Exposed skin would melt off their bodies.
暴露的肌肤会融化的。
2. Extension phase):Do not melt off clinging hands; Free hand must reach for the right handhold; Foot must not blow off.
伸展阶段）：不要放松用力手；空下来的手必须接触到正确的抓点；脚绝对不能松劲。
3. English Introduction: Catkin concealed self last year already costful while miss melt off guard with ice to fully grown a tear.
中文介绍：欢迎您玩“昆明湖”这个小游戏，去年藏的柳絮已珍贵趁思念不备把冰融成泪。

英英解释

v.
  1. take off weight

网络释义

melt off
熔融掉;
melt-off
熔脱;
melt-off pore
熔化孔;
off-melt
熔炼成分不合格;