Ecosystems
n. <生>生态系统( ecosystem的复数形式 )
🗣️ 情景例句
He gives his harness bells a shake
摇动， 绳上的铃铛
The end of next month looks like the most probable sales date.
下个月底好像是最佳的销售日。
It has four Rolls-Royce Merlin engines, but the group will need to have only three of them rebuilt.
该飞机装装配有4台罗尔斯-罗伊斯的默林发动机，但是他们只需要修复其中的3台。