条件关系:
if;unless; lest;provided that;if it is the case;in this sense;once...;if possible;if necessary;if so;if not all; if anything.
归纳总结类:
in other words;on the whole; in sum; therefore;hence;in short;in brief;to sum up;in conclusion; in summary; to conclude; the conclusion can be drawn that...; for this reason; in short.
地点关系:
beyond;opposite to; adjacent to; at the same place; there; over; in the middle;around; in front of; in the distance; farther; here and there; above; below; at the right; between; on this side.