"eye up" in Chinese (Simplified)
仔细打量盯着看（表达兴趣）
Definition
仔细地、有兴趣地看某人或某物，通常因为觉得有吸引力或想要得到某物。
Usage Notes (Chinese (Simplified))
“Eye up” 属于英式口语，用于描述有人有兴趣或带有暗示地打量别人，经常指觉得对方有吸引力。有时也指看中某个想要的东西。不要用于正式场合。美式英语更常说 'check out'。
Examples
He kept eyeing up the last slice of cake.
他一直在**仔细打量**那最后一块蛋糕。
She saw him eyeing up her new phone.
她看到他在**仔细打量**她的新手机。
The boys were eyeing up the trophies in the case.
男孩们在**仔细打量**柜子里的奖杯。
I could see she was eyeing up my shoes all evening.
我能看出来她一晚上都在**仔细打量**我的鞋子。
"Stop eyeing up the waiter and just order something!"
"别再**盯着看**服务员了，快点点菜吧！"
He spent the whole afternoon eyeing up that fancy car parked outside.
他整个下午都在**仔细打量**停在外面的那辆豪车。