They had the laborious task of cutting down the huge tree.
他
了伐大树
艰苦工作。
；困难，费力
乏味;;;;;，无聊;，;;, 无益;;;They had the laborious task of cutting down the huge tree.
他了伐大树艰苦工作。
I bought it from that salesman because of his psellism, and because I found him laborious.
因为那个推销员口吃我才向他买，因为觉得他不容易.
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