金属疲劳

metal fatigue

surname Jin / surname Kim (Korean) / Jurchen Jin dynasty (1115-1234)

gold / chemical element Au / generic term for lustrous and ductile metals / money / golden / highly respected / one of the eight categories of ancient musical instruments 八音[ba1 yin1]

metal / CL:種|种[zhong3]

category / genus (taxonomy) / family members / dependents / to belong to / subordinate to / affiliated with / be born in the year of (one of the 12 animals) / to be / to prove to be / to constitute

to join together / to fix one's attention on / to concentrate on

weary

fatigue / wearily / weariness / weary

to toil / labor / laborer / to put sb to trouble (of doing sth) / meritorious deed / to console (Taiwan pr. [lao4] for this sense)