subbing
底層塗布; 地下滲灌
sub
n 1: a large sandwich made of a long crusty roll split lengthwise
and filled with meats and cheese (and tomato and onion
and lettuce and condiments); different names are used in
different sections of the United States [syn: bomber,
grinder, hero, hero sandwich, hoagie, hoagy, Cuban
sandwich, Italian sandwich, poor boy, submarine,
submarine sandwich, torpedo, wedge, zep]
2: a submersible warship usually armed with torpedoes [syn: submarine,
pigboat, U-boat]
v : be a substitute; "The young teacher had to substitute for
the sick colleague"; "The skim milk substitutes for
cream--we are on a strict diet" [syn: substitute, stand
in, fill in]
[also: subbing, subbed]
subbing
n : working as a substitute for someone who is ill or on leave
of absence [syn: substituting]