1-
user-friendly
2-
up-to-date
3-
machine
4-
invention
5-
innovation
6-
device
7-
automation
8-
advanced
9-
access
10-
to monitor
11-
to install
12-
to network
13-
to boot
14-
to reboot
15-
to log in
16-
to log off
17-
to download
18-
to upgrade
19-
to browse
20-
file
21-
high tech
22-
advance
23-
software
24-
online
25-
safety
26-
hotspot
27-
server
Congratulations! !
You learned 27 words from Lesson 19. To improve learning and review vocabulary, start practicing.
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