After two days' exertions, it's the arms and hands that seize up, not the legs.两天的辛苦劳累过后，发僵的是胳膊和双手，腿倒没事。After two days' exertions, it's the arms and hands that seize up, not the legs...两天的辛苦劳累过后，发僵的是胳...
Thanks to the exertions of a few sensible and courageous men, the compromise was accepted.由于少数明智且勇敢的人的努力，折中方案被采纳了。After two days' exertions, it's the arms and hands that seize up, not the legs.两天的辛苦劳累过后，发僵的是胳膊和...
Replace with a needle which is thicker by one.更换成大1号的机针.Replace with a new disc holder assembly and oring.用新的阀瓣固定器总成和O形 环更换.Replace with four dry cells and do the experiment again.用4节干电池取代重做一次实验....