indistinguishability造句
Hormone replacement therapy is very important and should be instituted early.
激素替代治疗非常重要，应该及早开始。
Replacement parts couldn't be found for love or money.
替换零件怎么都找不到。
Sending a replacement jet would have been uneconomic.
当时派一架喷气式飞机去替换的话，代价太大了。