Its features are normative, qualificative, operable, inheritable and changeable.它的特征是规范性 、 限定性 、 可操作性 、 传承性和变迁性.It's the cardan joint that transfers the torque in a changeable angle.万向节能够实现可变角度的扭矩传递.The weather is v...
在炎热的夏夜，我们会在屋前走廊上吃晚饭。We'd eat during the hot summer evenings on the front porch.他们会在一天中最炎热的时刻小睡一会儿。They have a siesta during the hottest part of the day.一阵凉风吹来，让炎热的天气变得稍微舒适了一些。A cool breeze made the heat pleasantly b...