They put their hands behind their backs, so you can't see their hands.
他們將手放在背后,這樣你就看不見他們的手了。
初二英語課文 Unit 8 Where do you sit

?? 句中詞匯解析

從本句中提取的重要詞匯

behind [b?'ha?nd] 詞頻1
prep. (表示位置)在…的后面;支持;(表示順序)在身后;(表示比較)落后于; adv. 在后面;向后;在后面較遠處;(落)在后面; n. 〈口〉屁股;
?? be構成一些介詞+hind藏在后面→在…后面
"The crowd had to stand behind barriers."
人群只好站在障礙物后面。
近義:back, posterior, rear, rearward, lagging, late 反義:quick, rapid, accelerated
hands
n. 擁有, 所有\\n[計] 動手
近義:labor, laborers, workpeople, labour, labourers
backs
n. 后背, 脊背;后衛(back的復數形式)

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