Inconvertibility
n. 不能变换, 不能兑换\\n[经] 不兑换, 不可兑换
🗣️ 情景例句
You have been working on this for some time, Richard.
你从事这工作已有一段时间了， Richard。
Early start makes easy stages.
早开始是成功的保证。
they can locate and steer clear of obstacles -- or locate flying insects on which they feed.
并能通过回声来确定并躲开障碍物，或找到它们赖以为生的昆虫。