bacterium

/bækˈtɪəɹ.ɪəm/

Meanings

noun

细菌，病菌

A single celled organism with cell walls but no nucleus or organelles.

Examples :

"The scientist examined the sample and found a bacterium, a tiny cell without a nucleus, under the microscope. "

科学家检查了样本，在显微镜下发现了一个细菌，这是一种没有细胞核的微小细胞。

Related Words

found verb

/faʊnd/

发现，碰到

"While walking to school, Sarah found a lost wallet on the ground. "

莎拉在上学的路上，偶然在地上发现了一个丢失的钱包。

single noun

/ˈsɪŋɡəl/

单曲唱片，细碟

"My grandfather played a single of Elvis Presley at the family gathering. "

在我家人的聚会上，我爷爷放了一张猫王埃尔维斯·普雷斯利的单曲唱片 (或者: 细碟)。

organism noun

/ˈɔː.ɡən.ɪ.zəm/ /ˈɔɹ.ɡən.ɪ.zəm/

生物，有机体

"The single-celled organism was studied by the biology students in their science class. "

生物课上，生物系的学生们研究了这种单细胞生物。

microscope noun

/ˈmaɪkɹəˌskəʊp/ /ˈmaɪkɹəˌskoʊp/

显微镜

"The student used a microscope to see the tiny cells in the plant leaf. "

学生用显微镜观察植物叶片里的微小细胞。

walls noun

/wɔːlz/ /wɔlz/

城墙, 围墙

"The old city had strong walls to protect it from enemies. "

这座古城有坚固的城墙，保护它免受敌人的侵袭。

organelles noun

/ɔːrɡəˈnelz/ /ɔrɡəˈnelz/

细胞器

"Just like a factory has specialized machines for different tasks, a cell contains organelles that each perform a specific job, such as creating energy or storing waste. "

就像工厂里有专门的机器负责不同的任务一样，细胞里也含有各种细胞器，每种细胞器都执行特定的功能，比如产生能量或储存废物。

sample noun

/sæːm.pəl/ /ˈsɑːm.pəl/ /ˈsæm.pəl/

样品，样本，试样。

"a blood sample"

一个血液样本

examined verb

/ɪɡˈzæmɪnd/

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。

under adjective

/ˈʊndə/ /ˈʌndə(ɹ)/ /ˈʌndɚ/

下的，底下的

"The under-the-counter storage bin kept the extra supplies hidden. "

那个在台面下的储物箱把多余的补给品藏了起来。

nucleus noun

/ˈnjuː.kli.əs/ /ˈnuːkli.əs/

核心，中心。

"The nucleus of the family's discussions was always about who would do the dishes. "

这个家庭讨论的核心总是围绕着谁来洗碗。

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。

without adverb

/wɪθˈʌʊt/ /wɪðˈaʊt/

在...之外，外部地

"The school is located just outside the town, without the main shopping area. "

学校位于城镇外，不在主要的购物区之内。