Timeline
n. 时间轴, 时间表
✅ 同义词
🗣️ 情景例句
His house was always neat.
他家经常都是干净的。
No rose without a thorn.
玫瑰都有刺。
It has been found that certain bats emit squeaks and by receiving the echoes,
人们发现，某些蝙蝠能发出尖叫声，