前: front, forward, ahead, first, top (followed by a number), future, ago, before, BC (e.g. 293), former, formerly...
弓: a bow (weapon), to bend, to arch (one's back etc)...
交换: to exchange, to swap, to switch (telecom), commutative (math), to commute...
当作: to treat as, to regard as...
常温: room temperature, ordinary temperatures...
立体: three-dimensional, solid, stereoscopic...
筐: basket...
筹码: bargaining chip, gaming chip, casino token...
底: background, bottom, base, end (of the month, year etc), remnants, (math.) radix, base...
来电: incoming telephone call (or telegram), to phone in, to send in a telegram, to have an instant attraction to sb, to come back (of electricity, after an outage)...
