Regressivity
燃烧面递减性
🗣️ 情景例句
You first, Audrey.
你先来， Audrey。
She is a reliable assistant.
她是个可信赖的助手。
A temporary rudder was made on board from spare planks and it was fitted with great difficulty.
船员用备用的木板在船上赶制了一只应急用的舵，并克服重重困难将舵安装就位，