- 重点词汇
- 免费的
free; buckshee; gratuitous
- 软件
software
- 哪个
which
- 咨询
consult; seek advice; inquire; counsel; ask for information; consultative; advisory; consultation; advice; inquiry; counseling; consultancy; consulting service; information service
- 目录
directory; catalog; contents; catalogue; list; listings; table of contents; checklist; inventory
- 搜索引擎
search engine
- 定义
definition; define
- 安全
security; safety; safe; secure; invulnerable; gilt-edged; safely; securely; ensure; ensure safety
- 卫士
guard; bodyguard; defender
- 升级
upgrade; upscale; enhance; advance; step up; move up; level up; escalate; intensify; upgradation; escalation; enhancement; upgraded; enhanced