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- British Thermal Unit. Used for both heating and cooling, BTU is a measure of the heat given off when fuel is combusted. One BTU is equal to the heat given off by a wooden match. A ton is a unit of measure for cooling capacity. One ton = 12,000 BTUs per hour. Both units measure heat.