令他高兴的是，他的努力已经帮助他度过了对水稻的艰难的研究。
To his joy，his hard work has carried him through the tough research on rice.
To his joy，his hard work has carried him through the tough research on rice.

【答案】To his joy，his hard work has carried him through the tough research on rice.

【解答】

【点评】

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发布：2024/6/27 10:35:59组卷：0引用：1难度：0.9

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令他高兴的是，他的努力已经帮助他度过了对水稻的艰难的研究。To his joy，his hard work has carried him through the tough research on rice.To his joy，his hard work has carried him through the tough research on rice.