With the help of high technology,more and more new substances[ ]in the past years.空中应填have been discovered而不是 had been discovered,为什么

with the help of 等于什么? with the help of=_____ by with the help of sb 后面用宾格? 造句annoy,helpful ,with the help of with the help of teacher用with one's help的方式来说with the help of teacher= 英语翻译this flows clockwise around the hig all year round,being punctuated with runs of southern hemisphere,warm-sector depressions,also rotating clockwise,with warm sectors thrusting in from the north-west and cold fronts swinging round from so with the help of under the help of?with the help of a girlunder the help of a girl这两种表达都对吗? with the help of =with with one's help=? with one's help 与with the help of sb的区别with one's help 与with the help of sb的区别是什么? 英语翻译My Contribution To Fate,It is my solemn pleasure to introduce myself to you.I am Mrs.Marina Litvinenko,wife of Alexander Litvinenko,a former Russiansecurity officer who died in a London hospital after apparently beingpoisoned with the hig with the help of 同义词/?under the help of可以吗?还有吗 with the help of和by the help of有什么区别是不是前者更常用 for the help of 和with the help of的差别 是with the help of sb还是in the help of sb with the help of和by the help of都正确吗? he has gone to the college_____.A.under the teachers help B.without the teacher help C.with the help of the teachers D.with the teachers help with one's help 与with the help of sb的区别是什么? with one's help=with the help of one?xiangxi