Johns
n. 約翰斯（姓氏）
??? 情景例句
I really mean it.
當然是真的。
Art is long, life is short.
藝術恒久，生命短暫。
The second marks the arrival of transverse vibrations which travel more slowly and arrive several minutes after the first.
然后記錄下的是橫向波的到達，橫向波比縱向波傳播得慢，在縱向波到達幾分鐘后才能到達。