join by的用法和樣例：
例句
- A compound proposition that has components joined by the word and or its symbol and is true only if both or all the components are true.
綜合命題由和或其符號所連接的子句組成的復合命題，只有當所有子句為真時(shí)，該句才為真 - A pair of draft animals, such as oxen, joined by a yoke.
同軛車(chē)的動(dòng)物通過(guò)軛連在一起的一對載物動(dòng)物，如公牛
