Stratums
社会阶层（stratum的名词复数）; 地层; （组织的）层
✅ 同义词
🗣️ 情景例句
How do you do?
你好。
Where were you during the month of April last year?
去年四月份你在哪里？
and an American-made dialysis machine needs the EU's okay before is hits the market in Europe.
而美国制造的透析仪也要得到欧盟的首肯才能进入欧洲市场。