Mr Lemmens said that future spacecraft "should be designed in such a way that they can take themselves out of orbit safely, preferably by doing controlled re-entries".
start(controller) {
，这一点在同城约会中也有详细论述
Call of Duty advert banned for trivialising sexual violence
要知道，早在七八年前，智能音箱就曾“杀死”过一代AI玩具。
Why is this a problem?