例句:Spencerwastakenonforathree-monthtrialperiodbeforebeingacceptedasapermanentmemberofstaff.
在斯宾塞被接受为固定雇员之前经过了三个月的试用期。
perpetualadj.永久的
例句:Theyhopedtoliveillperpetualhappiness.
everlastingadj.永恒的,持久的,无止境的,耐用的
例句:Theconflictinginterestsofproducersandconsumerswillbeeverlasting.
eternaladj.永恒的,永远的,不灭的,没完没了的
例句:Cherryfelteternalgratitudetohimforsavingherlife.
lifetimen.一生,终生,寿命
例句:Tonyisalegendinhislifetimeforhisscientificdiscoveries.
invariablyadv.不变地,总是n.总量
例句:Itinvariablyrainswhenlgoonvacation.
transientadj.短暂的,瞬时的n.瞬时现象
例句:Angela'sfeelingofdepressionwastransient.
instantaneousadj.瞬间的,即刻的,即时的
例句:Hermotheraccidentallyswallowedthepoisonanddeathwasinstantaneous.