熟练
1.He can only judge has considerable knowledge of anatomy. Jack is certainly a skilled person with a knife. All the victims were from right to left was a knife injury, shows Jack is most likely left-handed, or two hands can be skilled with a knife. (Such an assumption is most likely an indirect means Mingjie Ke experienced doctors or anatomical persons). Jack may not be the individual committing the crime. Jack must have a certain physical person.He can
只能判断他是具有相当的解剖学知识。杰克肯定是一个熟练的用刀者。所有的受害人都是从右到左被刀伤害，说明杰克很有可能是左撇子，或者两手都能熟练用刀。（这个推测间接指明杰克很有可能是有经验的医生或者解剖学者）。杰克有可能不是单独作案。杰克必须是有一定体力的人。
2.It isn`t really correct. The pyramids were built by skilled workers, and the unemployed farmers also came to work during the flood season.
不是的.其实是技艺熟练的工人们建的.发大水时.农民们无事可做.也会加入到建金字塔的大军中.
