🧩 词语组成解析
🗣️ 情景例句
2, 3, 4, front. Now we're going to run it off. 2 3 4
前踢。现在, 我们来快跑。
The milk in the refrigerator has begun to turn sour.
冰箱里的牛奶开始腐败了。
a wave length (the horizontal distance between two wave crests),
波长(两个浪峰间的水平距离)