simple and opposite leaves对: answer; reply生: give birth to; bear单叶: integrifolious; simple leaf; simpleleaf; single leaf对生: opposite; pair formation攻生单: gong shengdan下载手机词典可随时随地查词查翻译关注微信公众号:chachacidian,回复:对生单叶,即可在微信中查询翻译