Who was at the helm when the collision occurred?当碰撞发生时,谁在掌舵?Down [ Up ] with the helm!转舵背 [ 迎 ] 风开!The boat seemed very slow to answer to any movement of the helm.这只船似乎对舵的转动的反应很不灵敏....
我写下46这个数字，又画了个圆将它圈起来。I wrote down the number 46 and drew a circle around it.我因感动而写下了几句诗。I have been moved to write a few lines of verse.我转过身，在黑板上写下了题目。I turned around and wrote the title on the blackboard....
The clone anergy and clone deletion are considered as the major theories of the immunotolerance mechanism.以往观点认为,T细胞 免疫耐受机制主要有克隆无能和克隆删除两种学说.This involved the deletion of a great deal of irrelevant material.这包括删除很大一部分不相关的...