孩子们在周围乱跑，让所有人都很烦。The children were running about under everybody's feet.我们能听见老鼠在墙里乱跑.We could hear the mice scurrying about in the walls.空袭警报期间不可到处乱跑.One should not run about aimlessly during an alert....
There are three short insertions in the maize 23 s gene.玉米的23s基因中有三个短的插入片段.Using genedifferential gene expression in rats which fed with ferrous methionine chelate and ferrous sulfate respectivly.研究缺铁日粮中补充蛋氨酸螯合铁与硫酸亚铁对大鼠铁...