present tense | |
I/you/we/they | upgrade |
he/she/it | upgrades |
present participle | upgrading |
past tense | upgraded |
past participle | upgraded |
You'll need to upgrade to 512Mb RAM to run these programs. 要运行这些程序,你需要升级到512兆内存。
Existing users can upgrade from the previous version free of charge. 老用户可以免费升级旧版本。
£1.5 million is being spent on upgrading security procedures. 150万英镑正被用于加强安检措施。
hardware upgrades 硬件升级设备
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