关于警犬的英语作文

Dearmother:I'myourchild.TodayisMother'sday.Ihavealotofsayingtoyou.Thankyouyourlove!Letmeknowhowtobea

Mother,howletchildrenadmiredthewords,Love,likefeedinghowourquietharbour.Loveispure,Loveisselfless,Lo

亲爱的邻居,我是隔壁的李华.很高兴我们能作为邻居,彼此照应.人说远亲不如近邻,以后用得着的地方,请尽管开口,不要拘束.前两天我的爷爷奶奶长途奔波来到这个异国他乡,看我.请大家星星方便,配合配合,让他们

吐血推荐爱狗好书《狗的家世》让你真正了解狗狗的想法几天前一不小心淘到一本好书,《狗的家世》,它是诺贝尔奖获得者劳伦兹描写狗的著作.虽然他从事的是严肃的动物行为学研究的工作,但他的语言却十分朴素,诙谐,

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植树节英语：ArborDay（植树节）Inmanycountriesithaslongbeenthetraditiontoholdanannualtreeorforestfestival.Theori

Therearefivepeopleinmyfamily--myparents,mybrother,mysisterandI.Myfatheris48yearsold.Heisfondoffundan

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ItisaniceSunday.Theairisfreshandtheskyisblue.TheclassmatesofClassoneGradesevenishavingapiniconNanSha

先说好了金币.!鄙人不才在悉尼读书几个月了再答：Currently,thehazehasbeenathornyproblemwhichisexertinganegativeeffectonpeople

asweallknowthatwaterpollutionintheworldismoreseriousthaneverbefore.Therearemanyreasonstoblame.Oneist

WonderfulJourneytoXiamenI'vebeenfondoftakingtripstosomecoatalplaceswhereIgotthechancetoenjoythebeaut

我家有只很有个性的狗.它要是高兴,能比谁都殷勤,能比谁都温柔.它会冲你汪汪叫几声,或是蹭着你的腿叫你把它抱进怀里,轻轻抚摸它,它偎在你的怀里,静静地躺着,享受着你的爱抚,仿佛是个温顺的孩子.它还很善解

德国牧羊犬和德国警犬根本不是一个类型的概念德国牧羊犬是犬的一个品种,它和中国昆明犬、英国史宾格犬、德国罗维纳犬之类的,都是犬的品种德国警犬...就是德国的警犬,书面一点说是：服务于德国警方的工作犬,它

Wedon'tneedtogiveinstructionstothepolicedogallthetime.不明白的再问哟,请及时采纳,多谢!

Apolicedogisadogthatistrainedspecificallytoassistpoliceandsimilarlaw-enforcementpersonnelwiththeirwo

追踪,防暴,护卫.辨别.

采用声音发出警报和警告.原理是,用麦克拾取外界的声音信号,脚步声开门声等.另外外界可拾取的信号源有很多种了,比方红外线信号,一些电子波的反射信号,温度信号,湿度信号,光照信号的.这个要看应用的领域.

Dogs,alsoknownaspolicedogs,isusedbythepoliceauthoritieshaveacertainuseofpolicedogs.Thebroadsenserefe