n. 戒指,指环;铃声,钟声;环形物;拳击场;
vt. 形成环状;环绕;使(例如铃)响;打电话给;
vi. 按铃,敲钟;回响;成环形;
🗣️ 情景例句
I have no time for extra-curricular activities.
我可没时间参加课外活动。
What's wrong now?
现在又怎么了。
Shortly after this the famous H. M. S. Challenger expedition established the study of the sea-floor as a subject worthy of the most qualified physicists and geologists.