是by sth for
是by sth for
by sth for sb
by sth for sb.
by sth.to sb.还是by sth.for sb.
be praise by sb for sth
see sth.onself see sth.for onself see sth.by oneself
by sb sth 和 buy sth for sb 意思一样吗?用法一样吗?
是send sth to sb 还是send sth for sb
是offer sth. for sb.? 还是 offer sth. to sb.?
make a plan是of sth 还是for sth
是arrange sb for sth还是arrange sb with sth
是leave sth.to sb.还是leave sth.for sb.