l have already
我已经做过了
以上为机器翻译结果，长、整句建议使用 人工翻译 。
The Q, N, E, F, and L lines, as well as most of the trains on the J and Z lines, already have models with electronic map displays, bright blue seats and frosty air conditioning.
WSJ: MTA Moving to Phase Out the C Line's Clunkers
应用推荐
模块上移
模块下移
不移动