Great. I believe you must care for his educations.太好了. 我相信你肯定很关心他的教育吧.My tutor holds her master's degree in educations and is very helpful.我的指导教师支撑教育的她的硕士学位和非常有帮助.I can not help thinking that educations should be fr...
加速度和速度都是矢量。Acceleration and velocity are both vectors.我们将用惯性矢量来定义惯性标量.Inertia scalars are defined in terms of quantities called inertia vectors.仅由两个矢量组成的力偶叫作简单力偶.A couple consisting of only two vectors is called a simple...
We slammed the gate after them, wedging it shut with planks.他们出去后，我们在后面砰地把大门关上，并用板条抵死。The house was built solidly of rough wooden planks.这房子是用粗木板牢固地建造的.We sawed the log into planks.我们把木头锯成了木板....