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- The copulation is a serious business. 房事成了嚴重的問(wèn)題
- The woman therefore at one copulation conceived. 她于是由他懷了孕。
- He then made the action of copulation and broke the big stone. 說(shuō)著(zhù)就做出交媾的動(dòng)作，把石頭弄破。
- The male organ of copulation in certain invertebrates. 雄性生殖器官某些無(wú)脊椎動(dòng)物的雄性生殖器官
- After the copulation duration, they die at once, despite of copulation or not. 雄蟻生下來(lái)的目的，純?yōu)榱伺c蟻后交配，只要交配期一過(guò)，不論任務(wù)達成與否，就會(huì )立刻死亡。
- The copulation had no influence on release and storage of sperm bundles. 交配對精子束的釋放和貯存無(wú)影響。
- The reproductive system has a complex innervation concerned in copulation and oviposition. 生殖系統有一個(gè)同交尾和產(chǎn)卵有關(guān)的復雜神經(jīng)系統。
- We focused on several key events during fertilization from membrane fusion to karyogamy of sperm cells and egg cells. 探討了從精細胞和卵細胞質(zhì)膜融合到它們的核融合完成這一發(fā)育階段的某些主要事件。
- Someone who engages in anal copulation (especially a male who engages in anal copulation with another male). 進(jìn)行肛門(mén)性交的人（特別是兩個(gè)男同性戀者之間的肛交）。
- Deterministic behavior models on copulation, spawning and environmental selection of artificial fish are built. 建立了人工魚(yú)產(chǎn)生交配欲望、產(chǎn)卵和環(huán)境選擇等預定義行為的認知模型。
- Karyogamy The fusion of two nuclei that exist within a common cytoplasm, as occurs in the formation of the zygote from two gametes. 核配：同一個(gè)細胞中兩個(gè)核之間的融合現象稱(chēng)為核配，核配發(fā)生在兩個(gè)配子結合成合子的過(guò)程中。
- "The copulation option is far more likel, and would make this the oldest representation ever of a pornographic scene. 而做愛(ài)的可能性更大,(如果這一看法屬實(shí)),它將是世界上已出土的最古老的色情場(chǎng)面。"
- Bonobos go the furthest in same-sex bonding with regular copulation among males. 倭黑猩猩在同性關(guān)系方面步子邁得更大，他們雄性之間經(jīng)常交媾。
- The researchers say the females may have died of stress caused by aggressive male copulation attempts. 對此，研究人員表示，雌性蜥蜴可能是由于雄性蜥蜴富有侵略性的交配行為對其產(chǎn)生了巨大的壓力而死亡的。
- Some male placoderm fossils show evidence of “graspers” that held the female fish during copulation. 一些雄性盾皮魚(yú)化石顯示出在交配期間用來(lái)抓住雌魚(yú)的“緊握器”的證據。
- The writer chained for life to the routine of a wage slave and the ritual of copulation. 作家的一生都被為錢(qián)賣(mài)命的不變常規和交配儀式牢牢拴住。
- In fact, there's no evidence that the birth rate ever fell because people were too smelly for copulation. 說(shuō)實(shí)話(huà)，從來(lái)沒(méi)有證據表明人太臭無(wú)法進(jìn)行性交從而導致出生率降低。
- Results Oncomelania hupensis hupensis s copulation behavior included calling and mating. 結果釘螺的交配行為可分為覓偶和求偶2個(gè)階段;
- This is the law of him that hath the issue of seed, and that is defiled by copulation. 這是有關(guān)因淋病，或遺精沾染不潔的人，
