1.
1. 引入：受...的控制 be subjected to | 引入 lead up | 通讯系统 communication system
2. lead up的反义词
2. 导致物：lead-pipe cinch 轻而易举的事 | lead-up 导致物 | leaded 空格大的
3. 抢先：lead up to 导致 | lead up 抢先 | lead 领导
4. 911查询·英语单词
4. 开枪：gat, bis, calico, flamer, four pounder, gak, heat, heater, Joint, strill, t... | to blast, buck, bust a cap, dent, fade, gat,ice, lead up, smoke 开枪 | 187, catch a body, check. Do, drop a body, put to...
verb
1. set in motion, start an event or prepare the way for
e.g. Hitler''s attack on Poland led up to World War II
Synonym: initiate