Upgrades
v. 提升( upgrade的第三人称单数 ); 使（机器、计算机系统等）升级; 提高（设施、服务等的）档次; 提高（飞机乘客、旅馆住客等）的待遇
🗣️ 情景例句
Carl, does your throat hurt?
Carl，你喉咙痛吗？
No practice, no gain in one's wit.
吃一堑，长一智。
From 1830 onwards in the USA and from about 1870 in Canada, settlers began to move westwards and to take possession of the plains as their own.
美国自1830年起，加拿大从1870年左右起，殖民者开始向西迁移，并把平原据为己有。