The best thing to do when entering unknown territory is smile.踏入未知地带最好的对策就是微笑。It is not unknown for valuable display items to go, ahem, missing.贵重的展品，呃哼，丢失的话，会众人皆知。Ignorance of people brings fear, fear of the unknown.人们的...
And there is the dread of the unknown, above all , the awful fear of hellfire.而且还有对未知的恐惧; 尤其是对于炼狱的惧怕.There at the fording in the little boat the unknown man plays upon his lute.浅滩的小舟上有个不相识的人正弹着琵琶.An unknown man has stole...
Circulation is much more sluggish in the feet than in the hands.脚部的循环比手部的循环缓慢得多。the sluggish black waters of the canal运河里缓慢流动的黑乎乎的河水This humid heat makes you feel rather sluggish.这种湿热的天气使人感到懒洋洋的....