E_ _ _
engrave (metal, glass, or stone) by coating it with a protective layer, drawing on it with a needle, and then covering it with acid to attack the parts the needle has exposed, especially in order to produce prints from it.
Etch
T _ _ _ _ _ _ _
a small instrument like a pair of pincers for plucking out hairs and picking up small objects.
Tweezers
a tube used to convey water, gas, oil, or other fluid substances.
pipe
O _ _ _ _ _ _ _
a person who supervises others, especially workers.
Overseer
get into gear
to start working or doing something in a more energetic and effective way
L _ _ _ _ _ _
Land from Gulliver´s travels
Liliput
P _ _ _
a mechanical device using suction or pressure to raise or move liquids, compress gases, or force air into inflatable objects such as tyres.
Pump
a series of linked metal rings used for fastening or securing something, or for pulling loads.
or
a group of hotels, restaurants, or shops owned by the same company.
chain
a phrase or opinion that is overused and betrays a lack of original thought.
Cliché
call a spade a spade
speak plainly without avoiding unpleasant or embarrassing issues.
M _ _ _ _ _ _ _ _
extremely small; tiny.
Minuscule
a machine, especially one powered by electricity or internal combustion, that supplies motive power for a vehicle or for another device with moving parts.
motor
from _ _ _ _ _ _ _
from the very beginning, especially without making use of or relying on any previous work for assistance.
from scratch
a piece of equipment consisting of a series of bars or steps between two upright lengths of wood, metal, or rope, used for climbing up or down something.
Ladder
blow a fuse
lose one's temper.
the smallest structural and functional unit of an organism, which is typically microscopic and consists of cytoplasm and a nucleus enclosed in a membrane.
cell
L _ _ _ _
a rigid bar resting on a pivot, used to move a heavy or firmly fixed load with one end when pressure is applied to the other.
Lever
J _ _ _ _ _
push, elbow, or bump against (someone) roughly, typically in a crowd.
Jostle
C _ _ _ _ _ _ _ _
deliberately created rather than arising naturally or spontaneously.
Contrived
the final nail in the coffin
an event that causes the failure of something that had already started to fail
a substance produced by a living organism which acts as a catalyst to bring about a specific biochemical reaction.
Enzyme
V _ _ _ _
a device for controlling the passage of fluid or air through a pipe, duct, etc., especially an automatic device allowing movement in one direction only.
Valve
a _ _ _ _ _
exist in large numbers or amounts.
abound
The specific action of an enzyme with a single substrate can be explained using a ____ ___ ___ analogy.
Lock and key
twist the knife
deliberately make someone's sufferings worse.