标志词：and; and also; or; neither nor; either or; not only…but (also)…; in the same way; that is to say; similarly; likewise; equally; as well as, same…as;
标志词：also; then; besides; in addition; additionally; furthermore; what is more; moreover; indeed; the other one;another one;apart from;above all
标志词：because; for; since; as; therefore; consequently; hence; so; thus; so…that; such… that; in order that; accordingly(因此;于是;相应地); due to; thanks to; as a result; in that(= because); now that(既然); because of; considering that, seeing that; in response to; for this reason;
标志词：but; however; on the contrary; contrarily; by contrast; in contrast; conversely; instead of ; rather than; unlike, on the other hand; unfortunately;
标志词: although; though; even though; even; even if; nevertheless; despite; in spite of; while; as;
King as he was, he was not happy.
Child as he is, he knows a lot.
Hard though/as he tried, he failed.
标志词 firstsecondlast of all; in the first placein the second placefinally; to begin with to continue; first…then; on one hand…on the other hand; for one thing…for another; one…another; some…others…still others;
标志词 while; whereas ; as; instead of; rather than; not…but;
标志词 when; whenever, before; after; since; as; while; until; till; simultaneously; meanwhile; in the meantime, at the same time;
标志词 if; only if; if only; unless, otherwise; as soon as; as long as; providing that; provided that; on condition that; when; whenever; with;
标志词 such as, for example, for instance, of (these, those, them); among (these, those, them), to illustrate, as an illustration, to take an example, more specifically speaking, namely.