议程的倒数第三项the antepenultimate item on the agenda宇宙飞船已开始倒数计时了.The spaceship is already being counted down.正割函数的倒数，称为余割函数。The value of the complement of the secant is called the cosecant....
由于抗震的要求, 砖混住宅一般在5层 、 6层以下.Due to seismic requirements, brick houses generally 5 layer, 6 layer below.在可以自然抗震的活着的树根里建房?A house built from living tree roots that provides natural against earthquakes?当然加州已经是属于完全 抗震 的地区了.Cal...