Tracerlab
同位素示踪物实验室
🗣️ 情景例句
Mary, what's your favorite sport?
玛丽，你最喜欢什么运动？
Did you go swimming yesterday?
你昨天去游泳了吗？
being brought up in an orphanages--which really is a mental health hazard.
比在孤儿院长大所受的危害要小一些，孤儿院才是真正危害精神健康的地方。