to be capable of; to be able to; can

capability; ability; CL:個|个[ge4]

energy; capabilities

whether one can; whether it is possible

energy sources; energy

cannot; must not; should not

might (happen); possible; probable; possibility; probability; maybe; perhaps; CL:個|个[ge4]

can only; obliged to do sth; to have no other choice

talent; ability; capacity

as far as possible; to the best of one's ability