In the UK, a significant proportion of children have not only experienced drinking alcohol by the time they are allowed to purchase an alcoholic beverage (i.e. before 18 years of age), but are likely to have been drunk at least once in the last 4 weeks.
btw. âº 1  written abbreviation for by the way: used, for example in emails, when you are writing something that relates to the subject you are discussing, but is not the main point of the discussion: âº 2  written abbreviation for by the way: used in an email, etc. to add an extra comment, piece of information, or question:
BTU is a unit of measurement for energy. One BTU is equal to the amount of energy used to raise the temperature of one pound of water one degree Fahrenheit.n a heat pump or furnace, the BTU number refers to the heat output of the particular unit. The higher the number the more heat the unit can produce. Air conditioners are a little different. The BTU number on cooling equipment refers to the amount of energy used to remove the heat from the air.