repertoir ... a set of skills that is used in a certain job
part of repertoir of a chef is good presentation of good preparation.
perk ... benefit such as money or goods that employee is entitled to
in the making ... be in the process of being created and developed
panama canal turns a century old this old ... 百年になる
the canal lasted more than three decades in the making .... この運河は製作中のまま30年あまり続いた
put into operation ... 実行に移す