(tōng, ㄊㄨㄥ) to go through; to know well; to connect; to communicate; open [CE-DICT]
常
(えいきゅう(永久)(P);とこしえ(永久);とわ) (adj-na,n,adj-no) (1) (とわ tends to be more abstract) eternity; perpetuity; immortality; (2) (えいきゅう only) Eikyuu era (1113.7.13-1118.4.3); (P) [EDICT]
(とう) (n,n-suf,ctr) (1) class; order; rank; (suf) (2) (See 等・など) et cetera (etc.); and the like; (pref) (3) equal [EDICT]
(ら) (suf) (1) pluralizing suffix (often humble, derogatory or familiar); and others; et alios; and the like; and followers; (2) (See あちら,いくら) or so (rough indicator of direction, location, amount, etc.); (3) (See 清ら) (after the stem of an adjective) nominalizing suffix [EDICT]
(など) (n,n-suf,prt) (1) (uk) et cetera; etc.; and the like; and so forth; (2) (indicating an approximate quote or vague suggestion) or something; (3) (lessening the significance or value of the previous word) the likes of; (P) [EDICT]
(děng, ㄉㄥˇ) class; rank; grade; equal to; same as; wait for; await; et cetera; and so on; et al. (and other authors); after; as soon as; once [CE-DICT]