🧩 词语组成解析
abbr. 输入阀；交互式视讯；自变量（Independent Variable）
🗣️ 情景例句
He has been friendlier lately.
他近来更友好了。
I'll leave the house at 8:00 and get to the office at 8:30.
我将在8:00离开房子并且在8:30到办公室。
To escape from the Earth in a rocket, one must travel at seven miles per second.
要乘坐一枚火箭飞离地球，火箭的速度要达到每秒7英里，