农民过去用手打麦脱粒.Farmers used to thrash their wheat by hand.在一些村子里,农民用机器来打麦.In some villages farmers use a machine to thresh wheat.在有脱粒机之前,农民用手打麦脱粒.Before thrashing machines farmers thrashed their wheat by hand....
Mr Leach is on holiday and was not available for comment.利奇先生休假了，不方便作出评论。Nitrates leach from the soil into rivers.硝酸盐由土壤渗入江河。Liquid water can leach soluble materials from the interface.液态水能够从界面溶解出可溶性物质....
Petrological and mineralogical examinations of core material can be used to identify hydrothermal alterations.岩芯的岩石学和矿物学研究也能用来鉴定水热蚀变.Argument against a hydrothermal origin is the sympathetic distribution of uranium and g...
Gorals seldom feed on Pinus koraiensis, Picea jezoensis, Abies nephralepis ( 1 %, 0.7 % and 1.7 % , respectively ).斑羚在冬季食红松 、 云杉 、 冷杉较少 ( 1% 、 0.7%、1.7% ).The rotten degree of fir trees is an important sign of quality of...