| 单词 | extraembryonic |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔conceptus〕The product of conception at any point between fertilization and birth. It includes the embryo or the fetus as well as the extraembryonic membranes.胚胎：从受精到出生期间任一阶段产物的通称，它包括了合子或胎儿甚至胚胎膜美国传统 |
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