Billisecond
毫微秒(十亿分之一秒)
🗣️ 情景例句
If you drive carefully.
只要你小心驾驶。
The cat followed her everywhere she went.
无论她到哪，那只猫都跟着她。
It sounds like you enjoyed it.
听起来你好象蛮喜欢的。