我们必须彻底消除这些错误才能继续项目。
We must ___efface all these mistakes before continuing the project.
时间渐渐抹去了那段痛苦的回忆。
Time has gradually ___effaced the painful memory.
他在会议上总是刻意低调，很少主动发言。
He always tries ___effacing himself at meetings, seldom speaking up voluntarily.
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