導(dǎo)讀:?sperm是指雄性動物生殖細胞,也稱為精子。它們通常由睪丸中的精子管產(chǎn)生,是受精過程中必不可少的一部分。在人類和其他哺乳動物中,sperm
?sperm是指雄性動物生殖細胞,也稱為精子。它們通常由睪丸中的精子管產(chǎn)生,是受精過程中必不可少的一部分。在人類和其他哺乳動物中,sperm通常由一個頭部、一個頸部和一個尾巴組成,尾巴能夠幫助它們游動到卵子處進行受精。
sperm的用法:
1. Sperm is the male reproductive cell, also known as spermatozoon. (sperm是雄性生殖細胞,也稱為精子。)
2. The sperm fertilizes the egg during sexual reproduction. (在性繁殖過程中,精子受精卵子。)
3. The sperm count can affect a man's fertility. (精液計數(shù)可以影響男性的生育能力。)
4. In vitro fertilization involves combining an egg and sperm in a laboratory dish. (體外受精包括在實驗室培養(yǎng)皿中結(jié)合卵子和精子。)
5. Some species of animals have external fertilization, where the sperm and egg meet outside of the body. (某些動物種類具有外部受精,在這種情況下,精子和卵子在體外相遇。)
例句:
1. The doctor recommended that he get his sperm count checked to determine if there were any fertility issues.
(醫(yī)生建議他檢查精液計數(shù),以確定是否存在生育問題。)
2. The sperm and egg must join together in order for fertilization to occur.
(精子和卵子必須結(jié)合在一起,才能發(fā)生受精。)
3. The sperm's tail helps it to swim towards the egg for fertilization.
(精子的尾巴幫助它向卵子游動,進行受精。)
4. The process of in vitro fertilization involves carefully selecting healthy sperm and eggs for fertilization.
(體外受精的過程中,需要仔細挑選健康的精子和卵子進行受精。)
5. External fertilization is common in aquatic animals, where the sperm and eggs are released into the water for fertilization to occur.
(外部受精在水生動物中很常見,其中精子和卵子會被釋放到水中進行受精。)
sperm是生殖過程中不可或缺的一部分,它們具有重要的受精作用。不同動物種類可能有不同的生殖方式,但sperm始終扮演著重要角色。通過檢測和選擇健康的sperm和egg,可以幫助解決一些生育問題。