If you are an athlete, strong abdominal muscles help you ensure a strong back an

游客2024-09-06  11

问题 If you are an athlete, strong abdominal muscles help you ensure a strong back and freedom from injury during______upper-body movement. (2016-29)

选项 A、valiant
B、variable
C、vigorous
D、vigilant

答案 C

解析 vigorous通常表示“充满活力的,精力旺盛的”,和energetic,lively,vital,vibrant等词意思相近。如:a vigorous youngster精力充沛的青年,还可表示“用力的,强有力的,强劲的”,如:avoid vigorous exercise避免强度大的锻炼。valiant尤指“(在战争中)英勇的,勇猛的”,如:a valiant solider勇敢的战士;variable强调“多变的;反复无常的”,如:variable weather多变的天气;vigilant则表示“警觉的;警戒的;警惕的”,如:remain vigilant保持警惕。
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