Blackboard
A blackboard (also known as a chalkboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulfate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
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Blackboard
A blackboard (also known as a chalkboard) is a reusable writing surface on which text or drawings are made with sticks of calcium sulfate or calcium carbonate, known, when used for this purpose, as chalk. Blackboards were originally made of smooth, thin sheets of black or dark grey slate stone.
has abstract
25بك المحتوى هنا ينقصه الاستشه ...... يوم)، وتستخدم عادة في التعليم.
@ar
A blackboard (also known as a ...... lack or dark grey slate stone.
@en
Een schoolbord bestaat uit een ...... t het aloude schoolbord stand.
@nl
Eine Schreibtafel oder Tafel i ...... ungs- und Präsentationszwecke.
@de
Quadro negro, quadro ou lousa ...... que as unhas só ficam sujas).
@pt
Un tableau noir est un panneau ...... tions de caractère temporaire.
@fr
Una lavagna è una superficie p ...... faccia opposta della lavagna.
@it
Una pizarra, pizarrón o encera ...... de sus labores que se realizan
@es
Классная доска (синоним: школь ...... ёта в небольших соревнованиях.
@ru
黑板是能讓粉筆於上面標記的平面,通常用作書寫。 黑板可以是一 ...... 廣泛使用。但在一些地方,不會產生塵埃的白板開始漸漸取代黑板。
@zh
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comment
25بك المحتوى هنا ينقصه الاستشه ...... يوم)، وتستخدم عادة في التعليم.
@ar
A blackboard (also known as a ...... lack or dark grey slate stone.
@en
Een schoolbord bestaat uit een ...... ing is en blijft "schoolbord".
@nl
Eine Schreibtafel oder Tafel i ...... ungs- und Präsentationszwecke.
@de
Quadro negro, quadro ou lousa ...... de ser extremamente irritante.
@pt
Un tableau noir est un panneau ...... tions de caractère temporaire.
@fr
Una lavagna è una superficie p ...... ere durante le interrogazioni.
@it
Una pizarra, pizarrón o encera ...... de roca de tiza, sino de yeso.
@es
Классная доска (синоним: школь ...... ёта в небольших соревнованиях.
@ru
黑板是能讓粉筆於上面標記的平面,通常用作書寫。 黑板可以是一 ...... 廣泛使用。但在一些地方,不會產生塵埃的白板開始漸漸取代黑板。
@zh
label
Blackboard
@en
Lavagna
@it
Pizarrón
@es
Quadro negro
@pt
Schoolbord
@nl
Schreibtafel
@de
Tableau noir
@fr
Классная доска
@ru
سبورة
@ar
黑板
@zh