跟伍嘉成一起背单词词汇表

line segment line oblique endpoint midpoint parallel extended extendable extend isosceles triangle equilateral triangle triangle perpendicular intersect vertical right triangle hypotenuse goniometer complementary angle supplementary obtuse angle acute angle angle adjacent angle quadrilateral quadrangle pentagram pentagonal pentagon cotangent tangent sinusoid cosine sine chord center diameter circle camber concentric arc sector contingency tangential tangency cuboid cube trapezoid rhombus parallelogram rectangle square surface superficies surface area superficial circumference perimeter calculable calculator calculus calculation calculate parabola curve root protractor calliper congruous congruity congruence congruent hollow conical cone conjugate point conjugation conjugate complication complicated complicate complex complexity approximately approximate approximation asymmetric symmetrical horizontal axis vertical axis symmetry quadrant axis ratiocination theorem axiom notation underline marker pen-and-ink inky inkwell penfriend fountain pen ball-point pen nib correction fluid rub rubber erasure erase portfolio folder ring binder clipboard notepad highlighter pencil ink pen eraser stationer stationery binder stapler bind bookshop bookstore bookseller bookstall bookworm bookmark booklet bookcase coursebook textbook text diligence diligent woolgather inattentive absorption absorbed concentration attention learning curve learner anecdote episode titbit journal annotation comment remember recitation recite science arts study hall concentrate attentive learn diary note study homework assignment assign desk chalk chalkboard blackboard classroom platform lecture theatre lectureship lecturer training college training trainer trainee tutorial tutor coach instructor instructive instructional instruction instruct teaching assistant teaching teacher teach difficult puzzle problem response respond answerable answer questioning questionable questionnaire question paper knife paper clip paperweight paper worksheet exercise highlight accentuate emphasis emphasize soluble solution solver solve dictum apothegm maxim aphorism motto adage proverbial proverb quotation excerpt extract quotable quote handwriting penmanship copybook calligrapher calligraphy workbook practised practise practice notebook jotter jot assistant professor associate professor professorship review revision revise professor