Block and tackle: Combination of pulleys with rope or cable, commonly used to augment pulling force.滑轮和滑车组: 带绳索和缆绳的滑轮组, 通常用于增大拉力.How can we hope to augment our forces when our allies are deserting us?同盟国背信弃义,我们怎能再指望扩大我们的...
The new technique has been used to identify the sex of foetuses.这一新技术已经被用来鉴别胎儿的性别。In other experiments, some of the lost foetuses were abnormal.在其他的实验中, 有一些不成功的胎儿是畸形的.In this way, Kuwabara has kept goat foetuses alive an...