Olaf Schultz 1who will replace Angela Merkel as Chancellor2 has pledged3 to make climate change4 his top priority5.
析：定语从句“who will replace Angela Merkel as Chancellor”由关系词“who”引导，指代先行词“Olaf Schultz ”，关系词在从句中充当主语；“to make climate change”为非谓语动词作宾语，“his top priority”为宾语补足语。
He had attempted to rescue the drowning man.
drown sth. out 压过；盖过
She turned up the radio to drown out the noise from next door.
drown one's sorrows 借酒消愁
He went to the bar to drown his sorrows.
They have been arrested as suspected drug traffickers.
arms trafficker 军火贩子
The police caught an international arms trafficker.
3.on suspicion of 涉嫌...
"I'm arresting you on suspicion of illegally possessing drugs," said the police officer.
suspicion of sth. 少许；一点儿
His mouth quivered in the suspicion of a smile.
The jury found him guilty. 陪审团裁决他有罪。
find in one's favour 判决对某人有利
The court found in her favour. 法庭判决对她有利。
find your feet 已适应新环境
I only recently joined the firm so I'm still finding my feet.
The government has pledged itself to root out corruption.
take/sign the pledge 正式承诺戒酒
What's this then, you're only drinking orange juice - have you signed the pledge or something?