Insititious
a. (字句等)插入的
🗣️ 情景例句
Since I retired,
自从我退休以后，
Is it short way from here to the American Embassy?
从这里到美国大使馆要走一小段路。
a wave length (the horizontal distance between two wave crests),
波长（两个浪峰间的水平距离）