n.(使)摆动( oscillate的名词复数 );
v.(使)摆动( oscillate的第三人称单数 );
例句:
He oscillates between political extremes.
他的政治观点在两个极端之间摇摆不定.
He oscillates between accepting the new position and retirement.
他在接受新职务与退休之间摇摆不定.
Human nature oscillates between good and evil.
人必在善恶之间摇摆不定.