常見(jiàn)例句

雙語(yǔ)例句

• The anther is made up of an outer epidermis, a middle fibrous layer, and an inner nutritive layer, the tapetum.
  花藥壁由外表皮層，中間纖維層，內(nèi)部營(yíng)養(yǎng)層和絨氈層構(gòu)成。
返回 nutritive layer