saddle back

基本解释

The shells of the tortoises come in two basic varieties, dome-shaped and saddle-backed.
这一亚种的巨龟有两个基本的种群，圆顶形和马鞍型。
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I found that funny because we never could put a saddle on the horse but had to ride it bare-backed.
我觉得这很有意思，因为我们根本无法给马装马鞍。如果骑得话，必须直接骑在马背上。
Mr Bush agreed to saddle financial companies with the Sarbanes-Oxley Act for much the same reason that Mr Obama backed the Dodd-Frank Act: the public demanded a response to corporate excesses.
布什之所以同意用《萨班斯-奥克斯利法案》限制金融企业，和奥巴马支持《多德-弗兰克法案》的原因是相同的：公众要求政府对企业界的肆意妄为采取对策。