Ectomesoblast
[胚]外中胚叶
🔁 扩展释义
【医】 外[胚层原]中胚层
🗣️ 情景例句
He keeps himself fit by running 5 miles every day.
他每天跑五公里以保持身体健康。
I bought it at half price.
我花了半价买来的。
And if, with the decay of vitality, weariness increases,
再者，随着精力的衰退，老年人的疲惫感会增长，