marine products; seafood; fish and shellfish
convenient; useful; finding useful; coming in handy; (priceless) treasure
indispensable; essential; requisite; required; compulsory; necessary
correspondence (to); equivalence; suitability; coordination; dealing with; coping with
stamina; endurance; physical strength; strength of an organization (e.g. profitability, productivity, economic clout, stability, growth potential)
to snatch away; to dispossess; to steal
shell (of crab, tortoise, etc.); carapace; person's back; years of experience
hard; solid; stiff; tight; strong; firm (not viscous or easily moved); safe
laws of nature; physical laws; physics
to be effective; to take effect; to work; to function well; to be possible (to do, use, etc.); to be able to
frequency (of appearance)
small; fine; minute; minor; trivial; sensitive
to stuff into; to jam; to shorten; to move closer together; to reduce (spending); to conserve; to focus intently on
any; anything; whatever; I am told; I hear; I understand
person with a lot of experience; old hand; veteran (in a particular field)
interior; inside; internal
free (of charge); gratuitous
preparation; arrangements; provision; getting ready; laying out (e.g. a meal)
low-priced; cheap; inexpensive; shallow (e.g. sympathy); superficial; cheap (e.g. government)
too-good-to-be-true offers (e.g. scams and frauds); too-good-to-be-true stories
nonexistent; not being (there); not having; not
first (of all); firstly; probably; most likely; more or less (satisfactory); on the whole
it cannot be that...; it is highly unlikely that...; it is impossible that...
curiosity; inquisitiveness
to stand in a row (e.g. shops on a street); to line in a row; to line
crowd of people; great number of people; in great numbers
to come and go; to go back and forth
to make an appearance; to show up
to surround; to crowd around
to stay at (e.g. hotel); to be docked; to be berthed; to be moored
to go to and from (a place); to go back and forth between; to go to (school, work, etc.); to attend; to circulate (e.g. blood, electricity); to be communicated (e.g. thought)
training range; training grounds; training area
to peek (through a keyhole, gap, etc.); to look down into (a ravine, etc.); to peek into (a shop, bookstore, etc.); to sneak a look at; to take a quick look at; to peep (through a telescope, microscope, etc.); to stick out (a scarf from a collar, etc.)
behavior; behaviour; manner; attitude; bearing
-ish; -like; resembling; appearing to be; seeming to be
company; lot; bunch; troupe; company (of musicians)