Centcal summation
[医] 中枢[性]总和
🧩 词语组成解析
🗣️ 情景例句
Do you sell foreign literature?
这儿有外国文学读物卖吗？
In a calm sea, every man is a pilot.
平静的海上易驶船。
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。