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nucellus

/njuːˈsɛləs/ /nuːˈsɛləs/

Meanings
noun

珠心

The tissue which surrounds and protects the embryo and lies inside of the integuments.

Examples :

"The scientist carefully dissected the ovule to examine the nucellus, the protective tissue surrounding the developing plant embryo. "
科学家小心地解剖了胚珠，以检查珠心，这个保护着正在发育的植物胚胎的组织。
biology plant seed anatomy part structure

Related Words

Illustration protective

protective noun

/pɹoʊtɛktɪv/

保护物，防护物。

"The protective helmet was essential for the construction worker. "

那个保护性头盔对建筑工人来说是必不可少的防护物。

Illustration integuments

integuments noun

/ɪnˈtɛɡjumənts/ /ɪnˈtɛɡjʊmənts/

外皮，表皮，外壳。

"The turtle's hard integument protected it from predators. "

乌龟坚硬的外壳保护它免受捕食者的侵害。

Illustration surrounds

surrounds verb

/səˈraʊndz/

包围，围绕。

"The tall fence surrounds the playground, keeping the children safe. "

高高的栅栏包围着操场，保护孩子们的安全。

Illustration developing

developing verb

/dɪˈvɛləpɪŋ/

发展， 进展

"The students are developing their reading skills in their English class. "

学生们正在英语课上发展他们的阅读能力。

Illustration tissue

tissue noun

/ˈtɪsjuː/ /ˈtɪʃu/

薄纱，绢。

"The delicate tissue paper wrapped the fragile antique doll. "

包裹着易碎古董娃娃的是精致的薄纱纸。

Illustration carefully

carefully adverb

/ˈkɛːfli/ /ˈkɛɹfli/

小心地，谨慎地，细致地

"He listened carefully to his mother's concerns, feeling sorrowful about her disappointment. "

他小心地听着母亲的担忧，为她的失望感到难过。(Tā xiǎoxīn de tīngzhe mǔqīn de dānyōu, wèi tā de shīwàng gǎndào nánguò.)

Illustration embryo

embryo noun

/ˈɛmbɹi.əʊ/ /ˈɛmbɹi.oʊ/

胚胎，孕育初期。

"The scientist studied the embryo to understand how the early stages of development occur. "

科学家研究胚胎，以了解生命孕育初期是如何发育的。

Illustration protects

protects verb

/pɹəˈtɛkts/ /pɹoʊˈtɛkts/

保护， 守护。

"Condoms are designed to protect against sexually-transmitted diseases."

安全套的设计是为了保护人们免受性传播疾病的侵害。

Illustration surrounding

surrounding verb

/səˈɹaʊndɪŋ/

包围，围绕。

"The large oak tree surrounding the picnic area provided welcome shade. "

围绕着野餐区的那棵大橡树提供了令人欢迎的阴凉。

Illustration scientist

scientist noun

/ˈsaɪ.ən.tɪst/

科学家，科学工作者。

"The scientist studied the effects of different types of soil on plant growth. "

那位科学家研究了不同类型的土壤对植物生长的影响。

Illustration examine

examine verb

/ɪɡˈzæmɪn/

检查，审查。

"He examined the crime scene for clues."

他仔细检查了犯罪现场，寻找线索。

Illustration dissected

dissected verb

/dɪˈsɛktɪd/ /daɪˈsɛktɪd/

解剖，剖析。

"In biology class, the students dissected a frog to learn about its organs. "

在生物课上，学生们解剖了一只青蛙，以便了解它的器官。