Sandpile
n. 沙堆
🗣️ 情景例句
Now I know.
我现在知道了。
My watch is fast and your watch is slow.
我的表快，而你的表慢。
Early next morning, she heard planes passing overhead and wondered how she could send a signal.
第二天一大早，她听到头顶上有飞机飞过，但不知道怎样才能发个信号。