This document defines and provides examples of several key terms related to robotic vacuum cleaners: 1. Clutter refers to disorderly messes that could interfere with a robotic vacuum cleaner's ability to navigate areas. 2. Diagonal refers to lines or patterns that cross an area at an angle rather than horizontally or vertically. Robotic vacuums may clean in diagonal zigzag patterns. 3. Virtual refers to simulated boundaries, like virtual walls, that robotic vacuums will not cross over.

1. ROBOTIC VACUUM CLEANER
GROUP 4

2. 1. Clutter
 Part of speech: noun, verb
 Pronunciation: /'klʌtə/
 Meanings: sự lộn xộn, hỗn loạn, làm bừa bộn
 Context: “If you have a house with large, open-plan floor
spaces and cluttered areas, then the robotic vacuum
cleaner may not be ideal”
=> lộn xộn, bừa bãi
 New context: “There were always lots of bicycles
cluttering the hall”

3. 1. Clutter

4. 2. Diagonal
 Part of speech: noun, adjective
 Pronunciation: /dai'ægənl/
 Meanings: đường chéo, nghiêng, thanh chéo
 Context: “Engineers design many cleaning models
including cleaning programs based on circular or spiral
patterns for a large covering, and many more models
including zigzagging, spot or crisscrossing in diagonals.”
=> đường chéo
 New context: “Draw two diagonal lines dividing the
square and the rectangle into triangles.”

5. 2. Diagonal

6. 3. Virtual
 Part of speech: adjective
 Pronunciation: /ˈvəːtʃʊ(ə)l/
 Meanings: ảo ảnh, ảo giác, hiệu dụng
 Context: “A virtual wall acts as a boundary that the
machine will not cross”
 ảo
 New context: “One museum Web site featured a virtual
tour of the museum's physical galleries”

7. 3. Virtual

8. 4. Dock
 Part of speech: noun, verb
 Pronunciation: /dɔk/
 Meanings: (n) bến tàu đậu
 The context of the word: “Once the robotic vacuum
cleaner completes it task, it will go back to its docking
station”
=> chân đế
 The new context of the word: The next morning the ship
docked at the main port of Indian Island.

9. 4. Dock

10. 5. Mop
 Part of speech: noun
 Pronunciation: /mɔp/
 Meanings: chổi lau, giẻ lau
 Context: “Additional to a vacuum system, a wide range
of cleaning robots uses wet mops and a self-dispensing
fluid reservoir.”
 giẻ lau
 New context: “Mary was already on the stairs, dust rag
and mop in hand.”

11. 5. Mop