Keystone correction
[电] 梯形校正
🧩 词语组成解析
keystone
[['ki:stəun]]
n. 拱顶石, 楔石, 重点
🗣️ 情景例句
to serve the senior citizens
为Riverdale的老年人
Of young men die many, of old men escape not any.
年轻人死得不少，而年迈者是在劫难逃。
She said she couldn't make up her mind. She said she would have to ask her future husband.
她说她还拿不定主意。她说她得问问她的未婚夫。