工於心計

scheming / calculating

heart / mind / intention / center / core / CL:顆|颗[ke1],個|个[ge4]

work / worker / skill / profession / trade / craft / labor

surname Yu / Taiwan pr. [Yu2]

(literary) Oh! / Ah!

(of time or place) in; at; on / (indicating any indirect relation) to; toward; vis-à-vis; with regard to; for / (indicating a source) from; out of / (used in comparison) than / (used in the passive voice) by

scheming / shrewdness

surname Ji

to calculate / to compute / to count / to regard as important / to plan / ruse / meter / gauge