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student asking question

its weight前面可以写o f ?是two to three times of its weight !

teacher

母语人士的回答

Rebecca

是的当然!即使你在its weight f写上of, o也很自然。例子: An ant can carry up to 20 times of its own body weight. (蚂蚁最多可以携带自身体重的 20 倍。) 示例: Water makes up 90 percent of human blood. (人体血液的 90% 是水。)

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12/27

通过测验完成表达式!

当它碰到一只时,幸运的寄生虫可以吸取其血液重量的两到三倍。