He was a Master of Science and also the master hand in mathematics.

他是个理科硕士，并且是数学的能手。

They did not come forward to kiss the master's hand (an Asiatic custom they had abandoned long ago), but bowed respectfully.

他们没有前亲吻主人的手（他们早就放弃了亚的习俗）， 而是恭敬鞠躬。

Now, in the haymaking season, he had tried his hand with the scythe—but he was no master hand at that, no.

现在，在收的季节， 他试过用镰刀动手——但他不是这方面的高手， 不。

In anger his master handed him over to the jailers to be tortured, until he should pay back all he owed.

主人就大怒，把他交给掌刑的，等他还清了所欠的债。